单词 | interbreed |
例句 | As the African immigrants spread around the world, they bred with other human populations, and people today are the outcome of this interbreeding. Sapiens: A Brief History of Humankind 2011-01-01T00:00:00Z They were afraid that those two healthy products of two races that had interbred over the centuries would suffer the shame of breeding iguanas. One Hundred Years of Solitude 1967-05-30T00:00:00Z Imagine a population of organisms with gene variants that are capable of interbreeding. The Gene 2016-06-02T00:00:00Z Similarly, when Sapiens reached East Asia, they interbred with the local Erectus, so the Chinese and Koreans are a mixture of Sapiens and Erectus. Sapiens: A Brief History of Humankind 2011-01-01T00:00:00Z The Galápagos-in-a-carton experiment had demonstrated how a population of interbreeding organisms—flies, say—evolves over time.* The Gene 2016-06-02T00:00:00Z But if wild populations with variations in genotype keep interbreeding, Dobzhansky knew, a new species would never be formed: a species, after all, is fundamentally defined by its inability to interbreed with another. The Gene 2016-06-02T00:00:00Z If those desirable mutants proceeded to interbreed with normal plants, the mutation would immediately be diluted or lost. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Geographic isolation might have solved some of the “grey finch” problem—by restricting interbreeding between particular variants. The Gene 2016-06-02T00:00:00Z These cats are obviously of Manx origin, and even interbreeding with tame cats they contribute taillessness. Travels with Charley in Search of America 1962-01-01T00:00:00Z Kneazles have up to eight kittens in a Utter and can interbreed with cats. Fantastic Beasts and Where to Find Them 2001-01-01T00:00:00Z There are ten breeds of dragon, though these have been known to interbreed on occasion, producing rare hybrids. Fantastic Beasts and Where to Find Them 2001-01-01T00:00:00Z For a new species to arise, then, some factor must arise that makes interbreeding impossible. The Gene 2016-06-02T00:00:00Z Jenkin’s central problem with Darwin was this: if hereditary traits kept “blending” with each other in every generation, then what would keep any variation from being diluted out immediately by interbreeding? The Gene 2016-06-02T00:00:00Z Farmers had been using this phenomenon for millennia—breeding and interbreeding animals to produce natural variants, and selecting these variants over multiple generations. The Gene 2016-06-02T00:00:00Z A team of European scientists used statistics and an evolutionary model to test both hypotheses, and their conclusion adds great certainty to the interbreeding hypothesis. New study shakes up evolution! Scientists confirm Neanderthal-human copulation 2014-04-09T17:45:00Z Bats, obviously, can fly over water, but since the new species had interbred with no others in the group called Bismarck's Isles, these bits of land must have once been much farther apart. 'Among the Islands': through mist and mud to a South Pacific wonderland 2012-11-07T22:04:04Z “So back in the day when the Homo sapiens was interbreeding with Neanderthals, you would have discouraged that?” Would bringing back extinct animals turn out as badly as it did in ‘Jurassic Park’? 2019-03-29T04:00:00Z They pose a risk not just of interbreeding but of bringing diseases from domestic populations into the wild so they affect wildcats. Endangered: the plight of Scotland's wildcats 2010-04-17T23:09:00Z The effect holds when the rate of interbreeding among first settlers and their seed exceeds the rate of breeding with newcomers. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z By then, the toy spaniels were successfully interbred with flat-nosed breeds and took on an appealing "flat skull" look. The value of Pumpkin on "The Gilded Age," descended from a breed that's all about the good life 2022-03-02T05:00:00Z In this way, he summons them to the surface, where they interbreed with the women of the village. The Old, American Horror Behind “Stranger Things” 2016-08-17T04:00:00Z This is the music that shows just how interbred these scenes were, and how wide the interests of the players were. Peter Gordon, New York's king of disco 2010-04-23T14:19:00Z Our genome contains residual genetic fragments from other organisms like viruses as well as species like Neanderthals with which early modern humans interbred. Gene from extinct human species fortifies high-altitude Tibetans 2014-07-02T04:00:00Z And though the rights holders eventually backed out of the venture, and all but three of the songs were discarded, the interbred DNA of Broadway and the boonies lives on. Review: In ‘Shucked,’ a Glut of Gleeful Puns and ‘Cornography’ 2023-04-04T04:00:00Z Each island of the GalaÅLpagos had its own mockingbird; they did not interbreed, and they differed in vital ways, so each might be considered a different species; yet they were also, essentially, alike. Secrets of Charles Darwin’s breakthrough: The real story of how we got to evolution 2015-05-30T04:00:00Z A genetic analysis based on louse DNA revealed the existence of two distinct clusters of lice that rarely interbred. Head lice evolution mirrors human migration and colonization in the Americas 2023-11-08T05:00:00Z To do this, Boeke's team started by using a method reminiscent of Mendel's peas: essentially, the researchers interbred different partially synthetic yeast strains and then searched amongst their progeny for individuals carrying both synthetic chromosomes. Yeast with an over half synthetic genome is created in the lab 2023-11-08T05:00:00Z Our data suggests that, at least with respect to avoiding interbreeding with their wild counterparts, dogs and cats are much more similar to each other than they are to all other domestic animals. European wildcats avoided introduced domestic cats for 2,000 years 2023-11-06T05:00:00Z Those two canids have overlapped in the Northern Hemisphere for at least 11,000 years, he says, but show little evidence of interbreeding. The Scottish wildcat has been wiped out by breeding with domestic cats 2023-11-06T05:00:00Z They also fear animals imported from different populations could interbreed and reduce their genetic fitness. Plans to ‘rewild’ Argentina spark fierce scientific debate 2023-11-01T04:00:00Z Although the variant was established in Asia as a result of interbreeding between Denisovans and sapiens, it also spread to European and native American populations. The genetic heritage of the Denisovans may have left its mark on our mental health 2023-10-30T04:00:00Z One definition, the biological species concept, posits that species are groups of actually or potentially interbreeding organisms capable of producing fertile offspring. To Understand Sex, We Need to Ask the Right Questions 2023-10-24T04:00:00Z Over the last decade, genomic sequences of modern and ancient individuals have revealed that, as domestic animals moved into new regions, they interbred with closely related wild species, which has dramatically altered their genomes. European wildcats avoided introduced domestic cats for 2,000 years 2023-11-06T05:00:00Z The findings, published in Communications Biology, are the latest findings to show how past interbreeding with Neanderthals has influenced the genetics of modern humans. Neanderthal gene variants associated with greater pain sensitivity 2023-10-10T04:00:00Z That rate of close-kin interbreeding is highest documented anywhere in the past, although some modern societies have similarly high levels of cousin marriage. Ancient marriage traditions—and politics—revealed in giant family trees built from DNA 2023-10-04T04:00:00Z Two of the biggest hurdles to wolf recovery are gunshot deaths and interbreeding with coyotes. Endangered red wolf can make it in the wild, but not without `significant’ help, study says 2023-09-29T04:00:00Z “By interbreeding with them, we got a quick fix to our immune systems, which was good news 50,000 years ago,” said Chris Stringer, a human evolution researcher at the Natural History Museum in London. We carry DNA from extinct cousins like Neanderthals. Science is now revealing their genetic legacy 2023-09-24T04:00:00Z Perhaps as a result of dwindling wildcat populations and a lack of opportunity to mate with other wildcats, rates of interbreeding between wild and domestic cats rose rapidly. European wildcats avoided introduced domestic cats for 2,000 years 2023-11-06T05:00:00Z A combination of vehicle strikes and gunshots, coupled with the interbreeding of the wolves and invasive coyotes and pressure from private landowners, led Fish and Wildlife to suspend releases from the captive population. Takeaways from AP’s reporting on efforts to restore endangered red wolves to the wild 2023-09-03T04:00:00Z In most of these species’ past, two or more relatives interbred, and their genomes joined forces instead of reverting to a diploid. Cells with extra genomes may help tissues respond to injuries—and species survive cataclysms 2023-08-23T04:00:00Z Golden paintbrush seeds are produced at a satellite facility, to prevent interbreeding with other varieties. This Thurston County farm helps restore prairies with native seeds 2023-08-18T04:00:00Z Wolves, coyotes and dogs can all interbreed and produce fertile offspring. How Mistaken Identity and One Bullet Revealed a Star Predator Far From Home 2023-07-07T04:00:00Z In place of a tree, we see a pattern of diversion from migration and reconnection through interbreeding, a bit like the veins in a leaf. A new model for human origins in Africa upends commonly held beliefs about our evolution 2023-07-01T04:00:00Z He was obsessed with the idea that the German race teetered on the brink of extinction, tricked into accepting un-German concepts like democracy or communism and foolishly interbreeding with lesser races. Western Civilization: A Concise History 2020-01-01T00:00:00Z Additionally, introductions have resulted in genetic changes to native fauna where interbreeding has taken place, as with buffalo with domestic cattle, and wolves with domestic dogs. Fundamentals of Biology 2015-01-01T00:00:00Z Golden paintbrush seeds are produced at a satellite facility, to prevent interbreeding with other varieties. This Thurston County farm helps restore prairies with native seeds 2023-08-18T04:00:00Z For speciation to occur, two new populations must be formed from one original population, and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed. Concepts of Biology 2013-04-25T00:00:00Z In place of a tree, we see a pattern of diversion from migration and reconnection through interbreeding, a bit like the veins in a leaf. A new model for human origins in Africa upends commonly held beliefs about our evolution 2023-07-01T04:00:00Z Neanderthals expanded across Europe and Asia, interbred with modern humans coming out of Africa, and then became extinct about 40,000 years ago. Study Offers New Twist in How the First Humans Evolved 2023-05-17T04:00:00Z For eukaryotes, most scientists define a species as a group of organisms that can interbreed and have fertile offspring. Fundamentals of Biology 2015-01-01T00:00:00Z Once two biological populations are separated and can no longer interbreed, their genomes increasingly diverge over time. Slave trade records help reveal when first yellow fever mosquitoes bit humans 2023-03-27T04:00:00Z In fact, the presence of hybrids between similar species suggests that they may have descended from a single interbreeding species and that the speciation process may not yet be completed. Concepts of Biology 2013-04-25T00:00:00Z But if biologists were to attempt to encourage interbreeding between the northern and southern residents, for example, the animals would likely just return to their families, Ford said. Southern resident orcas are too inbred. Will the population survive? 2023-03-20T04:00:00Z There appeared to be little gene flow between the two groups, suggesting that they rarely interbred. In Chernobyl’s Stray Dogs, Geneticists Find Nuclear Families 2023-03-03T05:00:00Z Bacteria reproduce asexually to make clones of themselves—they don’t interbreed. Fundamentals of Biology 2015-01-01T00:00:00Z But in the past 20 to 40 years, over the same period that these communities saw the explosive growth of cities, human blood–seeking mosquitoes have interbred with more benign, local populations. Slave trade records help reveal when first yellow fever mosquitoes bit humans 2023-03-27T04:00:00Z Once the populations are isolated, evolutionary divergence can take place leading to the evolution of reproductive isolating traits that prevent interbreeding should the two populations come together again. Concepts of Biology 2013-04-25T00:00:00Z When U.S. and Canadian regulators finally approved the fish for sale years later, they required that the salmon be raised entirely on land to prevent interbreeding with wild fish. Oceans away: Is raising salmon on land the next big thing in farming fish? 2023-02-09T05:00:00Z The research led to the surprising revelation that early humans interbred with these now extinct species. The Biggest Health and Biology Breakthroughs of 2022 2022-12-20T05:00:00Z Many types of diverging characters may affect the reproductive isolation, the ability to interbreed, of the two populations. Fundamentals of Biology 2015-01-01T00:00:00Z Their lineage represents the last true North American bison, since ranchers interbred many bison with cattle in the following years. The return of the American bison is an environmental boon — and a logistical mess 2022-11-27T05:00:00Z He suspects that even as banana growers worked to improve bananas, there was rampant interbreeding with wild relatives, leading to bunches of varieties with different genetic ancestries. Researchers have gone bananas over this fruit’s complex ancestry 2022-10-14T04:00:00Z This overlap would have still provided time for generations of humans and Neanderthals to meet, interbreed, and share toolmaking tips with one another. Modern humans and Neanderthals may have overlapped, shared culture in Western Europe 2022-10-13T04:00:00Z But if chimps and gorillas are any indication, humanity’s ancestors may also have come together to share resources on the landscape — a possibility hinted at by the amount of interbreeding between different hominin species. Primate Pals: When Chimps and Gorillas Form Rainforest Friendships 2022-10-11T04:00:00Z In fact, the presence in nature of hybrids between similar species suggests that they may have descended from a single interbreeding species, and the speciation process may not yet be completed. Fundamentals of Biology 2015-01-01T00:00:00Z Thanks to interbreeding with and among these early humans, their genetic traces live on in many of us today, shaping our bodies and our disease vulnerabilities – for example, to COVID-19. What’s next for ancient DNA studies after Nobel Prize honors groundbreaking field of paleogenomics 2022-10-08T04:00:00Z He also demonstrated that humans—Homo sapiens—interbred with these species after migrating out of Africa. Discoveries about Ancient Human Evolution Win 2022 Nobel Prize in Physiology or Medicine 2022-10-03T04:00:00Z Introduced rainbow trout interbreed with the cutthroat, diluting its genetics. Climate-fueled wildfires worsen danger for struggling fish 2022-09-25T04:00:00Z The new genetic data show Romans interbred African and European donkeys to create giant donkeys 155 centimeters tall—about 25 centimeters taller than a typical donkey. From a single domestication, donkeys helped build empires around the world 2022-09-07T04:00:00Z In fact, the presence in nature of hybrids between similar species suggests that they may have descended from a single interbreeding species, and the speciation process may not yet be complete. Biology for AP Courses 2022-06-09T00:00:00Z Scientists have long thought that when humans and Neandertals were on the planet at the same time, interbreeding snagged for our species important survival genes that Neandertals had honed over millennia of living in Eurasia. Here’s How Some Species Will Survive Climate Change 2022-08-15T04:00:00Z Previously, researchers had speculated about whether modern humans and Neandertals interbred. Discoveries about Ancient Human Evolution Win 2022 Nobel Prize in Physiology or Medicine 2022-10-03T04:00:00Z The multiregional hypothesis suggests that modern humans evolved independently in several places, while other genetic evidence suggests that modern humans can be traced back to interbreeding ancient hominin species. Miller & Levine Biology 2018-01-01T00:00:00Z Through interbreeding, or hybridization, GE crops might share their genetically-modified DNA with wild relatives. Environmental Biology 2018-09-06T00:00:00Z For speciation to occur, two new populations must be formed from one original population and they must evolve in such a way that it becomes impossible for individuals from the two new populations to interbreed. Biology for AP Courses 2022-06-09T00:00:00Z Every middle-school student learns the dogma: a species is defined as a group of organisms that interbreed and produce fertile young. Here’s How Some Species Will Survive Climate Change 2022-08-15T04:00:00Z That suggests that at some point, European wolves either interbred with a western population of dogs or, more intriguingly, underwent a separate domestication event. Ancient wolves give clues to origins of dogs 2022-06-29T04:00:00Z The genetic definition of a species is a group of organisms that are physically similar and able to interbreed, but that do not interbreed with other groups. Miller & Levine Biology 2018-01-01T00:00:00Z That means that they haven’t interbred very much at all with bears outside of their group. Meet the unique group of polar bears living with less sea ice 2022-06-16T04:00:00Z There are cases where organisms can interbreed making them look like a single species, when in fact they are not closely related at all. Biology for AP Courses 2022-06-09T00:00:00Z But separate species can and do interbreed, and animals of the same species at different ends of a very large geographic range can vary a startling amount from one another. They Want to Break T. Rex Into 3 Species. Other Paleontologists Aren’t Pleased. 2022-02-28T05:00:00Z Boyko isn’t convinced, noting that the later interbreeding scenario is the simplest. Ancient wolves give clues to origins of dogs 2022-06-29T04:00:00Z One reason that the red wolf populations declined in the wild is because the animals frequently interbred with coyotes. The Ghost Wolves of Galveston Island 2022-01-03T05:00:00Z “It feels neat and clean to say it’s a progression from X to Y to Z,” she says, but consistent interbreeding between wild and domesticated canines complicates things. Fossilized Poop Shows How Ancient Dogs Adapted to People 2021-10-29T04:00:00Z An isolated population of these early humans interbred with Neanderthals. Biology for AP Courses 2022-06-09T00:00:00Z And all modern dogs are descended from just a few, unless there is interbreeding and mixing to change the look of the breed, which can happen. How Old Is the Maltese, Really? 2021-10-04T04:00:00Z “I think their evidence makes the case even stronger that we’re looking at a single domestication event,” he says, though one that may have been complicated by interbreeding and other factors. Ancient wolves give clues to origins of dogs 2022-06-29T04:00:00Z They even interbred with the ancestors of modern humans, and we carry bits of their DNA today. Discovery of ‘Dragon Man’ Skull in China May Add Species to Human Family Tree 2021-06-25T04:00:00Z "The European Neanderthal actually began here in the Levant and migrated to Europe, while interbreeding with other groups of humans." New type of ancient human discovered in Israel 2021-06-24T04:00:00Z Early humans interbred with Neanderthals, emerged from Africa, then spread out to populate different parts of the globe. Biology for AP Courses 2022-06-09T00:00:00Z We bear a trace of Neandertal legacy in our genome, a bequest from ancestral interbreeding. Genes Linked to Self-Awareness in Modern Humans Were Less Common in Neandertals 2021-05-10T04:00:00Z According to historians, the North Rim herd was introduced to the area after a frontiersman's failed attempt to interbreed bison with cattle in the early 1900s. Grand Canyon lottery to kill bison gathers 45,000 entries 2021-05-06T04:00:00Z The two main branches of the First Peoples’ ancestry—the Ancient East Asians and the Ancient North Siberians—converged around 25,000 to 20,000 years ago and interbred. Genomes Reveal Humanity’s Journey into the Americas 2021-04-20T04:00:00Z Some of those eastern bears interbred with other Alaskan black bears and migrated to a different part of Alaska. Team recovers ancient genomes from dirt, revealing new history of North America’s bears 2021-04-19T04:00:00Z Early humans emerged from Africa, interbred with Neanderthals, then spread out to populate different parts of the globe. Biology for AP Courses 2022-06-09T00:00:00Z Genetic analysis confirmed the two species do not interbreed. Tiny differences in plumage and song have split two nearly identical birds into different species 2021-03-25T04:00:00Z Yet as Yellowstone’s wolves interbreed, with little outside influx of wolves with other genes, they are slowly becoming more genetically similar. Scientists look at how some Yellowstone wolves avoid mange 2021-02-20T05:00:00Z People today carry some Neandertal DNA as a result of long-ago interbreeding between Neandertals and H. sapiens. Neandertalized ‘Mini Brains’ Yield Clues to Modern Human Uniqueness 2021-02-11T05:00:00Z And let’s see it going back to the 1990s, before hatchery sockeye had interbred with wild fish for so long that the “wild” run lost so much of its fitness. Lake Washington sockeye: Hatchery is not the way 2021-02-09T05:00:00Z Early humans did not interbreed with Neanderthals, but we have many genetic similarities because we share a common ancestor. Biology for AP Courses 2022-06-09T00:00:00Z Prehistoric teeth unearthed at a site in Jersey reveal signs of interbreeding between Neanderthals and our own species, scientists say. Ancient Jersey teeth find hints at Neanderthal mixing 2021-02-01T05:00:00Z And another surprise was that the dire wolf didn’t seem to interbreed with other species — as dogs, wolves, coyotes and other canids do. DNA Reveals the Real Lives of ‘Game of Thrones’ Dire Wolves 2021-01-13T05:00:00Z Perri, Mitchell and their colleagues found no DNA evidence of interbreeding between dire wolves and gray wolves or coyotes. Dire Wolves Were Not Really Wolves, New Genetic Clues Reveal 2021-01-13T05:00:00Z Such genetic seclusion is unusual between related canid species, which often do interbreed. Dire wolves were real—and even stranger than we thought 2021-01-13T05:00:00Z Prezygotic and postzygotic barriers prevent migration of the two species, causing them to remain in contact with each other and begin to interbreed. Biology for AP Courses 2022-06-09T00:00:00Z Studying Canada goose migrations can be challenging; even bird biologists can’t tell migrant and resident geese apart by appearance; the populations also mix and interbreed. Do Canada geese still fly south for winter? Yes, but it's complicated 2020-12-16T05:00:00Z Perhaps the region was once a genetic way station, allowing interbreeding up and down the Pacific Coast, says Dr. Larson, who did not participate in the current work. Archaeologists Could Help Bring Otters Back From the Dead 2020-12-03T05:00:00Z He notes correctly that red wolves sometimes interbreed with coyotes. Opinion | Bring the red wolves back to Virginia 2020-11-19T05:00:00Z Lilith is one of the few human survivors saved by an alien race that wants to interbreed with them for both races’ survival. 5 paths to continue your Octavia E. Butler discovery after ‘Parable of the Sower’ 2020-10-09T04:00:00Z The number of interbreeding events per year for the two subpopulations of flowers is shown in the graph below. Biology for AP Courses 2022-06-09T00:00:00Z The 28 percent difference between the wild and captive varieties may come from some interbreeding with village dogs or from the common ancestor of all the dogs brought to Oceania. Singing Dogs Re-emerge From Extinction for Another Tune 2020-08-31T04:00:00Z They would then restore populations of westslope cutthroat trout, a native species that’s suffered from habitat destruction and interbreeding with rainbow trout. Fish poisoning planned for southwest Montana creek, lakes 2020-08-04T04:00:00Z Over the ensuing decades, the wolves developed widespread spine deformities and eye abnormalities, probably a result of interbreeding and insularity, and began to deteriorate. Review | Why migration is essential for survival — for animals and for humans 2020-07-23T04:00:00Z The genomes show that the two populations remained separate for thousands of years, but over time they began interbreeding. Daily briefing: The biggest drug-making challenges the world has ever faced 2020-05-14T04:00:00Z Iguanas interbreed with invasive species and their offspring continue to breed. Biology for AP Courses 2022-06-09T00:00:00Z “Some people would say that is a coincidence, I don’t believe it,” said Hublin, noting there is already genetic evidence that the groups interbred. Humans and Neanderthals 'co-existed in Europe for far longer than thought' 2020-05-11T04:00:00Z By combing through the DNA of over 27,000 modern-day Icelanders, researchers have uncovered new insights about the ancient hominin species who interbred with Homo sapiens. Daily briefing: What happens after you survive coronavirus 2020-04-23T04:00:00Z And yes, that was the other dominant strand in the Hanau manifesto: “inferior” races outbreeding Germans or tainting their blood by interbreeding. The Hanau terror attack shows the need for honesty about racism in Germany | Mithu Sanyal 2020-03-03T05:00:00Z "To conserve the genetic uniqueness of the two species, we should avoid their interbreeding in captivity and construct clear captive pedigrees," he said. Red pandas are two species, not one 2020-02-26T05:00:00Z They found that some of the dogs had greater genetic diversity, indicating that these dogs might have interbred with American wolves. Biology for AP Courses 2022-06-09T00:00:00Z “It’s now clear that interbreeding between different groups of humans goes all the way back,” says computational biologist Murray Cox of Massey University of New Zealand, Turitea, who was not involved in the new studies. Mysterious ‘ghost’ populations had multiple trysts with human ancestors 2020-02-20T05:00:00Z The two species interbred, with modern non-African human populations bearing residual Neanderthal DNA. Did Neanderthals bury their dead with flowers? Iraq cave yields new clues 2020-02-18T05:00:00Z A mysterious "ghost population" of now-extinct ancient human-like creatures may have interbred with early humans living in West Africa, scientists say. 'Ghost' human ancestor discovered in West Africa 2020-02-14T05:00:00Z Previous genetic research showed that our species interbred with both the Neanderthals and Denisovans, with modern human populations outside of Africa still carrying DNA from both. 'Ghost' ancestors: African DNA study detects mysterious human species 2020-02-13T05:00:00Z This is a common evolutionary phenomenon that occurs because drug-resistant mutants arise in a population and interbreed with other P. falciparum isolates in close proximity. Biology for AP Courses 2022-06-09T00:00:00Z After almost a decade of tantalizing but unproven sightings, several teams now seem to be converging on at least two distinct episodes of very ancient interbreeding. Mysterious ‘ghost’ populations had multiple trysts with human ancestors 2020-02-20T05:00:00Z From DNA recovered from the bones, researchers deduced that modern humans interbred with Neanderthals some 60,000 years ago, after leaving Africa. Neanderthal Genes Hint at Much Earlier Human Migration From Africa 2020-01-31T05:00:00Z Researchers found that Neanderthal ancestry in Africans was not due to an “independent interbreeding event” between Neanderthals and African populations. Neanderthal discovery sheds new light on human history 2020-02-05T05:00:00Z The latest findings suggest human and Neanderthal lineages are more closely intertwined than once thought and point to far earlier interbreeding events, about 200,000 years ago. Neanderthal genes found for first time in African populations 2020-01-30T05:00:00Z Not so in Africans, the story goes, because modern humans and our extinct cousins interbred only outside of Africa. Africans carry surprising amount of Neanderthal DNA 2020-01-30T05:00:00Z The gold standard for detecting interbreeding with archaic humans is to sequence ancient DNA from fossils of the archaic group, then look for traces of it in modern genomes. Mysterious ‘ghost’ populations had multiple trysts with human ancestors 2020-02-20T05:00:00Z These people interbred with Neanderthals, the new study suggests. Neanderthal Genes Hint at Much Earlier Human Migration From Africa 2020-01-31T05:00:00Z Italy’s pure stock of the bees was wiped out due to interbreeding and disease. Australian bushfires scathe sanctuary for rare bee species 2020-01-21T05:00:00Z The latest comparison highlights previously unnoticed ancient human genes in the Neanderthal genome, apparently acquired from interbreeding events dating to about 200,000 years ago. Neanderthal genes found for first time in African populations 2020-01-30T05:00:00Z The definition of a bird species is somewhat fluid, he said, because 60 percent of bird species interbreed. Trove of New Bird Species Found on Remote Indonesian Islands 2020-01-09T05:00:00Z Ancient DNA is how researchers first identified the mysterious Denisovans, who interbred with us and Neanderthals. Archaeological discoveries are happening faster than ever before, helping refine the human story 2020-01-14T05:00:00Z The scientists also found evidence that people living somewhere in western Eurasia moved back to Africa and interbred with people whose ancestors never left. Neanderthal Genes Hint at Much Earlier Human Migration From Africa 2020-01-31T05:00:00Z Research also suggests that gene drives stay confined to a single species rather than spreading into a related one through interbreeding. The Gene Drive Dilemma: We Can Alter Entire Species, but Should We? 2020-01-08T05:00:00Z Previously it was believed that only non-African populations carried Neanderthal genes due to interbreeding that took place after a major human migration out of Africa and across the globe about 60,000 years ago. Neanderthal genes found for first time in African populations 2020-01-30T05:00:00Z Neanderthals and modern humans probably clobbered each other, for example, but they also interbred. Science made astonishing progress. It was also hijacked by those with an axe to grind | Laura Spinney 2019-12-26T05:00:00Z In many places the boar and the feral domestic hogs interbred. Feral Pigs Roam the South. Now Even Northern States Aren’t Safe. 2019-12-16T05:00:00Z Looking at the size of these shared segments and how common they were around the world, Dr. Akey and his colleagues realized that some were the result of interbreeding very early in human history. Neanderthal Genes Hint at Much Earlier Human Migration From Africa 2020-01-31T05:00:00Z Then there was the idea that Coloured people were a product of "miscegenation" - the interbreeding of people considered to be of different racial types. Was my mother given away because she looked white? 2019-11-30T05:00:00Z The variation is equivalent to “what you’d see in a wild population, freely moving and freely interbreeding” she said, and undercuts the domestication theory. Millions of Ibises Were Mummified. But Where Did Ancient Egypt Get Them? 2019-11-16T05:00:00Z Although most of the genomes are low-quality ‘drafts’, comprising short stretches of DNA, the data are already hinting at how new species can arise from interbreeding. Daily briefing: Why some research agencies are awarding grants by lottery 2019-11-19T05:00:00Z However, the team says if the ancient Egyptians farmed sacred ibises, the genetic diversity in ancient birds would probably be lower due to high levels of interbreeding. Experts crack mystery of ancient Egypt’s sacred bird mummies 2019-11-13T05:00:00Z It’s possible that humans and Neanderthals interbred at other times, and not just 200,000 years ago and again 60,000 years ago. Neanderthal Genes Hint at Much Earlier Human Migration From Africa 2020-01-31T05:00:00Z Federal wildlife authorities now support about 11,000 genetically pure bison with only the slightest traces of cattle interbreeding. Time ticks away at wild bison genetic diversity 2019-11-03T04:00:00Z Lippman said that when it comes to squash varieties, of which there are hundreds, their chromosomes and DNA content are similar enough to allow for them to be interbred. The secret to growing giant pumpkins 2019-10-31T04:00:00Z He aims to develop a picture of how we lived, interbred and formed cultural groups—and how and when class division, or structured inequality, arose in human society. Ancient Teeth Reveal Social Stratification Dates Back to Bronze Age Societies 2019-10-11T04:00:00Z Contrary to previous hypotheses, our family tree is quite the tangled mess of interbreeding species. Humanity’s Journey 2019-09-19T04:00:00Z They did not test whether the different eel species would be able to interbreed if given the chance, but after millions of years of divergent evolution, it isn’t likely that sparks would fly. Newly discovered eel delivers the strongest electric jolt on record 2019-09-10T04:00:00Z In a paper published online July 11 in the journal BMC Evolutionary Biology, the researchers showed that the color-changing allele probably originated in fox squirrels and moved over to gray squirrels through interbreeding. Why are there so many black squirrels in the United States? Scientists find the answer. - The Washington Post 2019-09-06T04:00:00Z Those steppe herders carried European DNA from previous interbreeding events, the authors note, explaining the once-perplexing genetic link between Europeans and South Asians. Genome of nearly 5000-year-old woman links modern Indians to ancient civilization 2019-09-05T04:00:00Z What they found was that the farmers brought their pigs with them, but that over three thousand years, those pigs interbred with European wild boar. An Archaeological Puzzle on the Danube 2019-08-20T04:00:00Z Black squirrels are the result of "interbreeding" between their grey cousins and the North American fox squirrel, a study has concluded. Black squirrels 'the result of interbreeding' 2019-08-13T04:00:00Z But the black squirrels seen scampering through southern England are a form of grey squirrel created by wild interbreeding between greys and fox squirrels in North America, according to research. Black squirrel 'super' species? No, just a darker shade of grey 2019-08-13T04:00:00Z But the feature is a strong sign of interbreeding, the scientists said. Archaic tooth gives some teeth to theory of interbreeding among different kinds of humans 2019-07-12T04:00:00Z One explanation, he notes, might be that ancient South Asians learned farming practices from their neighbors without interbreeding with them. Genome of nearly 5000-year-old woman links modern Indians to ancient civilization 2019-09-05T04:00:00Z Just consider how, in 2016, computer models were used to explore genetic information extracted from ancient bones to probe the extent of interbreeding between modern humans, Neanderthals and Denisovans. Computing Biology's Future 2019-07-04T04:00:00Z They found traces of interbreeding with modern pandas, implying that giant pandas were more genetically diverse before their range shrank in size. Daily briefing: Deep-sea fish have developed their own way of seeing colour 2019-05-09T04:00:00Z They discovered that other “signatures” on the mutated gene were more closely related to the fox squirrel, suggesting the mutation probably arose in the fox squirrel and passed to the grey through interbreeding. Black squirrel 'super' species? No, just a darker shade of grey 2019-08-13T04:00:00Z And over more time, people and plants shifted southward, with cultivated plants intermittently interbreeding with wild plants. Plant studies show where Africa's early farmers tamed some of the continent's key crops 2019-05-01T04:00:00Z There is clear evidence of interbreeding between the two extinct species as well as with modern humans. 'Spectacular' jawbone discovery sheds light on ancient Denisovans 2019-05-01T04:00:00Z Both experienced significant interactions with Homo sapiens, including interbreeding, before vanishing for reasons not fully understood. Denisovans, mysterious extinct humans, conquered high altitudes 2019-05-01T04:00:00Z Neanderthals shared the world with Homo sapiens for a while, which led to competition — and interbreeding. Fossils Are Filling Out the Human Family Tree 2019-04-10T04:00:00Z Scientists knew from DNA evidence that the two extinct groups of humans must have interbred, but they had never found a first-generation offspring before. Scientists in Germany identify first hybrid hominin 2019-03-26T04:00:00Z It showed that early farmers either deliberately crossed this crop—now the sixth most widely grown in the world—with wild relatives and with domesticates from other places, or cultivated varieties that naturally interbred. Plant studies show where Africa's early farmers tamed some of the continent's key crops 2019-05-01T04:00:00Z Today, four major lines of research exist: One involves cross-breeding corals to create heat-tolerant varieties, either by mixing strains within a species or by crossing two species that would not normally interbreed. Researchers embrace a radical idea: engineering coral to cope with climate change 2019-03-21T04:00:00Z “It’s either an incredible piece of luck, or interbreeding happens so frequently that we might expect to find these types of occurrence in the archaeological record.” Siberia’s ancient ghost clan starts to surrender its secrets 2019-02-26T05:00:00Z Rainbow trout are the biggest threat to the blue-ribbon fishery’s native Yellowstone cutthroats, because they compete with and interbreed with the cutthroat. Prize money being offered to thin South Fork rainbow trout 2019-02-12T05:00:00Z They become predators and kill wild animals, disturb the ecosystem, transmit diseases to wildlife, compete with them for prey, and also interbreed with closely related species. Dogs 'becoming major threat' to wildlife 2019-02-11T05:00:00Z At some point in the distant past, the Denisovans disappeared — but not before interbreeding with modern humans. High Ceilings and a Lovely View: Denisova Cave Was Home to a Lost Branch of Humanity 2019-01-30T05:00:00Z Scientists last year described a Denisova Cave bone fragment of a girl whose mother was a Neanderthal and father a Denisovan, evidence of interbreeding. Siberian cave findings shed light on enigmatic extinct human species 2019-01-30T05:00:00Z Are these ideas tenable in the light of mounting genetic evidence that our ancestors interbred with the Neanderthals? Viewpoint: Why we still underestimate the Neanderthals 2019-01-24T05:00:00Z Tens of thousands of years ago, humans interbred with Neanderthals, and anyone of Eurasian ancestry now carries some Neanderthal genes. What We Learned in 2018: Science 2018-12-20T05:00:00Z It occurred to them that an answer might be found in a natural experiment that took place about 60,000 years ago: the interbreeding of modern humans and Neanderthals. Narrower Skulls, Oblong Brains: How Neanderthal DNA Still Shapes Us 2018-12-13T05:00:00Z Pigs have died and litters have become smaller as the animals have been inappropriately interbred, she said. ‘Really a disappointment’: Colonial farm in N.Va. to close Friday after rejecting agreement 2018-12-18T05:00:00Z The brain shape of some people with European ancestry is influenced by Neanderthal DNA acquired through interbreeding tens of thousands of years ago, researchers report on 13 December in Current Biology1. How Neanderthal DNA might have shaped some human brains 2018-12-12T05:00:00Z Once both groups settle there, they will be allowed to interbreed. European zoos to send critically endangered rhinos to Rwanda 2018-11-20T05:00:00Z Both Neanderthals and Denisovans interbred with our ancestors some 60,000 years ago, and billions of people today carry their DNA. How Did We Get to Be Human? 2018-11-20T05:00:00Z Maybe they interbred with people in the Amazon before disappearing altogether. Crossing From Asia, the First Americans Rushed Into the Unknown 2018-11-08T05:00:00Z These genes are the result of repeated interbreeding long ago between Neanderthals and modern humans. Deep in Human DNA, a Gift From the Neanderthals 2018-10-04T04:00:00Z But it does force scientists to change their definition of a “species,” as animals that do not interbreed, he said. The DNA of extinct cave bears lives on 2018-09-14T04:00:00Z But it does force scientists to change their definition of a “species,” as animals that don’t interbreed, he said. Extinct Cave Bear DNA Lives On in Brown Bears 2018-08-27T04:00:00Z The Atlantics also do not interbreed with Pacific salmon, making them the most suitable species of salmon to farm, Richardson said. 800,000 more farmed Atlantic salmon coming to Puget Sound before industry’s permits expire 2018-08-29T04:00:00Z The report Wednesday in the journal Nature adds to a growing body of evidence that ancient hominids — including some of our own direct ancestors — interacted and interbred repeatedly over the course of evolutionary history. Mom was a Neanderthal. Dad was something else entirely. Meet the strangest hybrid in human history. 2018-08-22T04:00:00Z That remnant DNA got into our gene pool through repeated interbreeding. Deep in Human DNA, a Gift From the Neanderthals 2018-10-04T04:00:00Z Despite interbreeding, Neanderthals and Denisovans never merged into a single genetic population. A Blended Family: Her Mother Was Neanderthal, Her Father Something Else Entirely 2018-08-22T04:00:00Z The fact the genes have been passed down the generations shows that interbreeding must have happened. DNA shows cave girl was half Neanderthal 2018-08-22T04:00:00Z Neanderthals and Denisovans were less genetically diverse than modern humans, and so interbreeding might have provided a way of “topping up” their genomes with a bit of extra genetic variation, he says. Mum’s a Neanderthal, Dad’s a Denisovan: First discovery of an ancient-human hybrid 2018-08-21T04:00:00Z Based on other ancient genomes, researchers already had concluded that Denisovans, Neanderthals, and modern humans interbred in ice age Europe and Asia. This ancient bone belonged to a child of two extinct human species 2018-08-22T04:00:00Z But Neanderthals did, and through interbreeding, Neanderthals provided modern humans with genetic defenses. Deep in Human DNA, a Gift From the Neanderthals 2018-10-04T04:00:00Z Our own DNA provides evidence that those early modern humans interbred with Neanderthals and Denisovans. A Blended Family: Her Mother Was Neanderthal, Her Father Something Else Entirely 2018-08-22T04:00:00Z Was this the result of interbreeding long ago between taller modern humans and shorter Homo floresiensis? Bodies Keep Shrinking on This Island, and Scientists Aren't Sure Why 2018-08-02T04:00:00Z The finding is one of many suggesting hybridization is much more common than most scientists thought; by speeding up evolution, such interbreeding makes it possible for offspring to thrive under different conditions. How the snowshoe hare is losing its white winter coat 2018-06-21T04:00:00Z Potential explanations include violent conflict with Homo sapiens, disease, difficulty adapting to rapid environmental and climate change, interbreeding with modern humans and differences between the two species in technical, social and cognitive abilities. Human Brain Gain: Computer Models Hint at Why We Bested Neandertals 2018-04-26T04:00:00Z Some of the genes inherited from them through interbreeding also protected our ancestors from these infections, just as they protected the Neanderthals. Deep in Human DNA, a Gift From the Neanderthals 2018-10-04T04:00:00Z As never before, the mysteries of our bodies and histories are finding exciting answers—from the revelation that humans interbred with Neanderthals, to how Britain was populated, to the enigma of a decapitated Egyptian mummy. Scientists Must Unravel a Thorny Mummy Controversy 2018-04-08T04:00:00Z Denisovans and humans also interbred, with the result that living people in East Asia, Australia, and the South Pacific still carry some Denisovan DNA. Bodies Keep Shrinking on This Island, and Scientists Aren't Sure Why 2018-08-02T04:00:00Z We briefly mixed and interbred with them before we continued our slow diaspora across the planet. David Reich: ‘Neanderthals were perhaps capable of many modern human behaviours’ 2018-04-07T04:00:00Z Before Neanderthals became extinct in Europe, they encountered and interbred with the ancestors of modern humans as they departed Africa. David Reich Unearths Human History Etched in Bone 2018-03-20T04:00:00Z To understand the results of this interbreeding, Sharon Browning at the University of Washington in Seattle and her colleagues surveyed thousands of contemporary human genomes, looking for the distinctive footprints of archaic DNA. Prehistoric humans and archaic relatives paired off — twice 2018-03-14T04:00:00Z For example, their work contributed to the startling discovery that Neanderthals interbred with the ancestors of all modern humans descended from Europeans, Asians and other non-Africans. Sex, power and ancient DNA 2018-03-12T04:00:00Z In February, researchers studying the elephant genome revealed how elephants interbred with mastodons, Omland noted. Ravens mated another species into oblivion, their twisted family tree shows 2018-03-02T05:00:00Z Reich has since established that such interbreeding may have occurred on more than one occasion. David Reich: ‘Neanderthals were perhaps capable of many modern human behaviours’ 2018-04-07T04:00:00Z Each branch, the new study suggests, interbred with the ancestors of living humans. David Reich Unearths Human History Etched in Bone 2018-03-20T04:00:00Z Excavations at Denisova Cave in Russia have uncovered remains of an archaic human that interbred with our own species. Prehistoric humans and archaic relatives paired off — twice 2018-03-14T04:00:00Z For example, Reich’s lab found that Europeans were more closely related to Native Americans than to East Asians, and this couldn’t be explained by recent interbreeding. Sex, power and ancient DNA 2018-03-12T04:00:00Z Samples from along the American West Coast showed evidence of past interbreeding, the proportion of these ancient genes decreasing the farther ravens lived from California. Ravens mated another species into oblivion, their twisted family tree shows 2018-03-02T05:00:00Z Throughout our prehistory, populations have split, reformed, moved on, remixed and interbred and then moved on again. David Reich: ‘Neanderthals were perhaps capable of many modern human behaviours’ 2018-04-07T04:00:00Z As people from different ancestries interbred, the mutation made its way further afield, into Europe and India. How One Child’s Sickle Cell Mutation Helped Protect the World From Malaria 2018-03-08T05:00:00Z The DNA does not indicate which episode of interbreeding took place first. Prehistoric humans and archaic relatives paired off — twice 2018-03-14T04:00:00Z The study found that different elephant species interbred regularly in history, and confirmed that African forest and savannah elephants are different species. Boosters, bacteria and human-sized drones — February’s top science images 2018-03-01T05:00:00Z “It stays by itself and doesn’t interbreed with the others.” Two become one: two raven lineages merge in 'speciation reversal' 2018-03-02T05:00:00Z Genetic evidence also shows that Neanderthals and modern humans interbred: About two percent of modern European and Asian DNA traces back to Neanderthals. World's Oldest Cave Art Found—And Neanderthals Made It 2018-02-22T05:00:00Z Newer theories instead focus on factors such as low population density and “assimilation by interbreeding” with humans. Neanderthal artists made oldest-known cave paintings 2018-02-21T05:00:00Z There was also interbreeding with another archaic group called the Denisovans. Tracing the tangled tracks of humankind's evolutionary journey 2018-02-12T05:00:00Z Did interbreeding during this time period lead to the later fossils found in China? Scientists discover the oldest human fossils outside Africa 2018-01-25T05:00:00Z One study, not yet confirmed, suggested that modern humans may have interbred with Neanderthals in Eurasia about as far back as 220,000 years ago. In Cave in Israel, Scientists Find Jawbone Fossil From Oldest Modern Human Out of Africa 2018-01-25T05:00:00Z When they did finally begin to disperse across the globe, according to this model, they replaced the archaic human species they encountered along the way, including the Neandertals, without interbreeding with them. Fossil from Israeli Cave Is Oldest Homo sapiens Found Outside of Africa 2018-01-26T05:00:00Z However, the genetic modifications that stop interbreeding—the poison and antidote—could carry a steep evolutionary fitness cost, says Omar Akbari, a molecular biologist at the University of California, San Diego. Synthetic Species Designed to Shun Sex with Wild Organisms 2018-01-18T05:00:00Z We can only speculate on the circumstances of these interbreeding events and whether they were peaceful mergers of different tribes or violent encounters. Tracing the tangled tracks of humankind's evolutionary journey 2018-02-12T05:00:00Z If we were o different races we could not interbreed, but we are all homo sapien sapiens. Opinion | The Heartbeat of Racism Is Denial 2018-01-13T05:00:00Z Some of those clues suggest that interbreeding plays a larger role in the formation of new species than previously thought. When two different types of birds mated, a new species, Big Bird, was born 2018-01-05T05:00:00Z Moreover, researchers studying DNA recovered from fossils have shown that as H. sapiens entered new lands it did in fact interbreed with archaic human species it encountered, including the Neandertals and the mysterious Denisovans. Fossil from Israeli Cave Is Oldest Homo sapiens Found Outside of Africa 2018-01-26T05:00:00Z It does not seem likely, the study authors said, that these populations would interbreed. Climate change is turning 99 percent of these baby sea turtles female 2018-01-08T05:00:00Z Yes, genetics shows that the ancestors of everyone outside of Africa interbred with Neanderthals, probably more than once. Tracing the tangled tracks of humankind's evolutionary journey 2018-02-12T05:00:00Z This new finch population is sufficiently different in form and habits to the native birds, as to be marked out as a new species, and individuals from the different populations don't interbreed. Bird caught in act of becoming new species 2017-11-23T05:00:00Z They ceased interbreeding and no longer share any gene flow. New species of orangutan is the rarest great ape on the planet 2017-11-03T04:00:00Z While the two groups did interbreed from time to time, they would remain largely distinct. New Species of Orangutan Is Rarest Ape on Earth 2017-11-02T04:00:00Z Although orangutans in north and south Sumatra occasionally interbred after the lineages diverged, the Tapanuli orangutans became completely isolated by about 20,000 years ago, and the new genetic analysis shows signs of inbreeding. New great ape species found, sparking fears for its survival 2017-11-02T04:00:00Z We saw that we interbred with the Denisovans, and they interbred with us. Why Race Is Not a Thing, According to Genetics 2017-10-14T04:00:00Z But in more recent years, it has been established that many birds and other animals that we consider to be unique species are in fact able to interbreed with others to produce fertile young. Bird caught in act of becoming new species 2017-11-23T05:00:00Z Over many generations of interbreeding, the pale variant of SLC24A5 became common in some African populations. Genes for Skin Color Rebut Dated Notions of Race, Researchers Say 2017-10-12T04:00:00Z Scientists at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, also confirmed that Neanderthals interbreeding with humans affected people’s skin and hair color, though not in any single direction. Researchers shed light on Neanderthal’s legacy in humans 2017-10-05T04:00:00Z But S. dumicola hatchlings live together for life, which leads to interbreeding—brothers mate with sisters, and so on. Watch Baby Spiders Eat Their Mothers Alive 2017-09-20T04:00:00Z Their results highlight important questions about the interbreeding of species: How much of it is nature doing its own work? What Swims Like a Duck and Quacks Like a Duck Could Be a Hybrid of Two Duck Species 2017-09-11T04:00:00Z The ancestors of present-day Sub-Saharan Africans likely interbred with this “ghost” species sometime prior to 150,000 years ago. The secret about human evolution found in spit 2017-09-05T04:00:00Z As Africans moved into Europe and Asia, they interbred with Neanderthals on several occasions. Genes for Skin Color Rebut Dated Notions of Race, Researchers Say 2017-10-12T04:00:00Z Shared genes between modern humans and Neandertals make it clear that at some time and place in the past, the two species did meet and interbreed—just not at Vindija Cave, Devièse says. Neandertals and early modern humans probably didn’t meet at rumored rendezvous site 2017-09-04T04:00:00Z This interbreeding may explain why virgin females care for relatives' offspring: Because the spiders share so much genetic material, a female might assume the offspring is her own. Watch Baby Spiders Eat Their Mothers Alive 2017-09-20T04:00:00Z Rainbows are a particular threat to cutthroat because they readily interbreed, tainting the gene pool. River in Yellowstone to be cleared of exotic fish 2017-08-27T04:00:00Z If hybrids resulting from the meeting are less fit than the purebred offspring of either parent population, that would encourage those parent populations to evolve barriers, such as distinctive markings, which stopped further interbreeding. How species originate 2017-07-27T04:00:00Z Analyses of these people's DNA "confidently" suggests that the interbreeding happened only 45,000 to 53,000 years ago, Reich says. A find in Australia hints at very early human exit from Africa 2017-07-19T04:00:00Z “DNA studies have demonstrated that anatomically modern humans and Neandertals interbred,” he says. Neandertals and early modern humans probably didn’t meet at rumored rendezvous site 2017-09-04T04:00:00Z Analysis of mitochondrial DNA from a Neanderthal femur found in southwestern Germany now adds to evidence that there was earlier interbreeding. Early humans and Neanderthals interbred much earlier than once thought 2017-07-07T04:00:00Z We knew already that human ancestors interbred with Neanderthals. Ancient humans may have been mothers to some Neanderthals earlier than we thought 2017-07-04T04:00:00Z At some point before 270,000 years ago, African humans closely related to us moved into Europe and interbred with Neanderthals. How Are Neanderthals Related to Humans? Finally, an Answer 2017-07-04T04:00:00Z Tributaries may split off from the main waterway and then loop back; species may diverge, then interbreed. Humanity’s strange new cousin is shockingly young — and shaking up our family tree 2017-05-09T04:00:00Z Across the globe, researchers are trying to endow domesticated crops with these traits through interbreeding. Agrobiodiversity: The living library : Nature : Nature Research 2017-04-25T04:00:00Z “This and previous findings are lending support to models with frequent interbreeding events.” Early humans and Neanderthals interbred much earlier than once thought 2017-07-07T04:00:00Z Does that mean a small group of archaic humans left Africa early, and interbred before the big migration? Ancient humans may have been mothers to some Neanderthals earlier than we thought 2017-07-04T04:00:00Z He went on to talk about the trouble with racially interbred societies, the genetic basis of criminality, and his belief that the South should secede. America’s Most Political Food 2017-04-17T04:00:00Z White tigers are the result of interbreeding in zoos and are popular with visitors. Cuteness and questions after white tiger quadruplets born in Polish zoo 2017-04-04T04:00:00Z They occasionally interbred with modern humans, meaning their genes live on today. New insight into secret lives of Neanderthals - BBC News 2017-03-08T05:00:00Z As they spread across the world, they displaced the existing populations they encountered, such as the Neanderthals and Denisovans - but some limited interbreeding occurred. Ancient skulls give clues to China human history - BBC News 2017-03-03T05:00:00Z The Yamnaya immediately interbred with local Europeans, who were descendants of both the farmers and hunter-gatherers. Thousands of horsemen may have swept into Bronze Age Europe, transforming the local population 2017-02-21T05:00:00Z There, Anatolian farmers from the Near East swept into Europe with a package of artifacts including tools, seeds, and domesticated animals, and replaced or interbred with the local hunter-gatherers 12,000 to 8000 years ago. Ancient women found in Russian cave were close relatives of today’s indigenous population 2017-02-01T05:00:00Z Borysew zoo said the interbreeding only affects one gene, which changes the tigers' colors but doesn't affect the health of the cubs. Cuteness and questions after white tiger quadruplets born in Polish zoo 2017-04-04T04:00:00Z I got calls from all over the world from people who thought that since Africans didn’t interbreed with Neanderthals, this somehow justified their ideas of white superiority. What Did Neanderthals Leave to Modern Humans? Some Surprises 2017-01-20T05:00:00Z So one might expect some level of Neanderthal features in their morphology, added to by evidence of some later interbreeding with the Neanderthals. Ancient skulls give clues to China human history - BBC News 2017-03-03T05:00:00Z Then again, it’s also possible that some of the interbreeding was forced. Neanderthals Were People, Too 2017-01-11T05:00:00Z Zink said guesswork goes into whether birds in different regions would interbreed if given the chance. Professor thinks bird species is double what is believed 2017-01-07T05:00:00Z A new study suggests they acquired this talent by interbreeding with gray wolves that already ranged to such heights more than 20,000 years ago. Tibetan dogs can survive at high altitudes, thanks to ancient breeding with wolves 2016-12-06T05:00:00Z Roughly 50,000 years ago, the Neanderthals and modern humans encountered one another and interbred. Donald Trump, Hillary Clinton, U.S. Senate: Your Wednesday Briefing 2016-11-09T05:00:00Z At first researchers thought the birds were somehow interbreeding with the red-shafted northern flicker, which is lives in the West. Why Yellow Birds Mysteriously Turn Red 2016-10-21T04:00:00Z The cave — at 2,900 square feet, about the size of a home in the American suburbs — has become a center of study into ancient hominid interbreeding. Siberian Town Stakes a Claim as Humanity’s Cradle 2016-10-19T04:00:00Z Some bird experts prefer the biological species concept, defined largely by whether kinds of birds can interbreed. Professor thinks bird species is double what is believed 2017-01-07T05:00:00Z To find out when the mastiffs and Tibetan wolves interbred, the scientists constructed an evolutionary tree for a region of each canid’s EPAS1 gene. Tibetan dogs can survive at high altitudes, thanks to ancient breeding with wolves 2016-12-06T05:00:00Z The farmers seized much of their territory and converted it to farmland, without interbreeding with them. How the First Farmers Changed History 2016-10-17T04:00:00Z Despite the waxwing findings, bird experts puzzling over the red northern flickers still suspected interbreeding was the cause. Why Yellow Birds Mysteriously Turn Red 2016-10-21T04:00:00Z Rima Botukayeva, a cosmetologist, sounded offended that a question might even be raised about the genetic evidence of interbreeding so long ago. Siberian Town Stakes a Claim as Humanity’s Cradle 2016-10-19T04:00:00Z Studies of ancient DNA show the bison arose from interbreeding between the extinct steppe bison and the auroch, about 120,000 years ago. Cave paintings reveal clues to mystery Ice Age beast - BBC News 2016-10-19T04:00:00Z They also discovered two genetic areas in the mastiffs—but not in the other dogs—that had all the signs of having been acquired by interbreeding with the Tibetan gray wolf. Tibetan dogs can survive at high altitudes, thanks to ancient breeding with wolves 2016-12-06T05:00:00Z The new genetic results simply show that this farming technology spread through the Fertile Crescent, but that the populations sharing it did not interbreed. How the First Farmers Changed History 2016-10-17T04:00:00Z Females produce up to 40,000 eggs each year — much more than most freshwater fish species — and are capable of interbreeding with other species of wild carp. In the Wild, Goldfish Turn From Pet to Pest 2016-09-22T04:00:00Z The display captures the strange overlap in evolution that allowed interbreeding. Siberian Town Stakes a Claim as Humanity’s Cradle 2016-10-19T04:00:00Z And scientists are only just starting to uncover our genetic ties to other species — extinct cousins like Neanderthals and Denisovans who interbred with Homo sapiens as the latter made their way out of Africa. Aboriginal DNA points to an earlier human exodus from Africa 2016-09-22T04:00:00Z Indeed, such interbreeding between species has turned out to be unexpectedly common in other species, too. Tibetan dogs can survive at high altitudes, thanks to ancient breeding with wolves 2016-12-06T05:00:00Z In other words, they’ll be eaten by wild fish before they have a chance to compete for food or interbreed. The government wants more offshore fish farms, but no one is biting 2016-09-25T04:00:00Z And, together with newly announced genomes from ancient mammoths, the analysis also reveals that many different elephant and mammoth species interbred in the past. Elephant history rewritten by ancient genomes 2016-09-15T04:00:00Z In an emerging model of evolution, widely supported by scientists, different types of early humans, including Neanderthals, interbred and left their genetic traces with many of us today. Siberian Town Stakes a Claim as Humanity’s Cradle 2016-10-19T04:00:00Z Closer inspection of their genes, however, reveals that giraffes should actually be divided into four distinct lineages that don’t interbreed in the wild, researchers report on 8 September in Current Biology1. DNA reveals that giraffes are four species — not one 2016-09-07T04:00:00Z They may still interbreed, but group in these four genetically distinct categories. Surprise! There are four species of giraffe, not one 2016-09-08T04:00:00Z When two groups of the same species are separated and interbreed for long enough, they diverge into other species. I trapped lizards in Los Angeles because their DNA holds secrets 2016-08-23T04:00:00Z The researchers found evidence that many of the different elephant and mammoth species had interbred. Elephant history rewritten by ancient genomes 2016-09-15T04:00:00Z It might also be key to understanding interbreeding and population dispersal across Europe and Asia, she added. Ancient Tools Offer New Clues to Skills of Early Humans 2016-08-09T04:00:00Z There are no behavioral barriers to them interbreeding. How the Most Hated Animal in America Outwitted Us All Surviving wolves interbred with the coyotes, producing hybrid offspring. DNA Study Reveals the One and Only Wolf Species in North America 2016-07-27T04:00:00Z The subspecies live side-by-side but, without males, can never interbreed and so are becoming more and more genetically distinct. With no males, these butterflies are evolving into separate species 2016-07-20T04:00:00Z It also says fish grown from the genetically engineered eggs are all female and sterile so they can’t interbreed. Washington tribe joins legal challenge over modified salmon 2016-07-19T04:00:00Z It also says fish grown from the genetically engineered eggs are all female and sterile so they can't interbreed. Washington tribe joins legal challenge over modified salmon 2016-07-19T04:00:00Z After humans left Africa, this population split away from other non-Africans and somehow avoided interbreeding with Neanderthals. First farmers had diverse origins, DNA shows - BBC News 2016-07-15T04:00:00Z Then these early humans expanded their range to Eurasia 60,000 years ago, where they replaced local hominins with a minuscule amount of interbreeding. How China is rewriting the book on human origins 2016-07-11T04:00:00Z A lot of sandpiper species nest or feed in mixed flocks, follow the same migratory paths, and interbreed. In honor of Pixar's adorable "Piper," here's The Verge's review of sandpipers 2016-06-26T04:00:00Z When they were brought from the wild to American zoos, they were allowed to interbreed. Teaching an Orangutan to Breast-Pump 2016-06-24T04:00:00Z If they were a single species, such side-by-side living would lead to interbreeding. Crime-solving technique maps the underground lair of the Slovenian dragon 2016-06-20T04:00:00Z Wayne adds that interbreeding between dogs and wolves could have muddied the picture. Dogs may have been domesticated more than once 2016-06-02T04:00:00Z And what may be most surprising about this, researchers say, is the role interbreeding plays in the futures of endangered species — or, as the case may be with polar bears, accelerating their end. Love in the time of climate change: Grizzlies and polar bears are now mating 2016-05-23T04:00:00Z The new work also shows that wild horses continued to interbreed with domestic ones throughout this time period, evolutionary geneticists reported last week at the Biology of Genomes meeting in Cold Spring Harbor, New York. Frozen Scythian stallions unravel mysteries of horse domestication 2016-05-17T04:00:00Z This supports theories that early humans interbred with Neanderthals, but that their DNA was toxic to us and gradually weeded out by natural selection over the course of millennia. Ice Age Europeans had some serious drama going on, according to their genomes 2016-05-05T04:00:00Z Even after interbreeding these mice for about 20 generations, the mice “seem to be fine” with no obvious abnormal health effects, Zhang says. The gene editor CRISPR won’t fully fix sick people anytime soon. Here’s why 2016-05-03T04:00:00Z They found that the birds have been evolving, interbreeding and specializing in response to their environment ever since their common ancestor first arrived on the islands 2 million years ago. 200 years after Darwin, this is how the iconic Galapagos finches are still evolving 2016-04-22T04:00:00Z If the subspecies mix genes by interbreeding, they may be able to increase their variation. Foxes That Endure Despite a Lack of Genetic Diversity 2016-04-21T04:00:00Z Rick Wahle, a research professor at the university's marine science school, dismissed the danger of interbreeding, another risk raised by the Swedes. The American and Canadian lobster industries are digging in for a fight against the possibility of a ban on lobster exports to Europe 2016-04-11T04:00:00Z Rick Wahle, a research professor at the university’s marine science school, dismissed the danger of interbreeding, another risk raised by the Swedes. Shellfish behavior: US lobster industry at odds with Sweden 2016-04-11T04:00:00Z After all, even humans are the product of interbreeding between Homo sapiens, Neanderthals, and Denisovans. The Verge Review of Animals: the coywolf 2016-04-03T04:00:00Z Sometimes the traits that make them so distinctive are a result of selection, other times they're a result of hybridization — two species interbreeding to produce something slightly new. 200 years after Darwin, this is how the iconic Galapagos finches are still evolving 2016-04-22T04:00:00Z The ancestors of modern humans not only shared the planet with a surprising number of near relatives long ago, but also interbred with them, according to a new analysis. Your Weekend Briefing: Salah Abdeslam, European Union, Donald Trump 2016-03-20T04:00:00Z The most mysterious interbreeding episode of all involves Denisovans and a ghost population of hominins that may have left Africa some million years ago. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z The interbreeding swapped genes among the two groups. Oldest known case of Neanderthal-human sex revealed by DNA test 2016-02-17T05:00:00Z The new study, published in the journal Nature, indicates that additional interbreeding also occurred tens of thousands of years earlier. Out of Africa, and into the arms of a Neanderthal 2016-02-17T05:00:00Z The tests suggest that the interbreeding may be unique to the Atalai Neanderthals. Neanderthals and Humans Interbred Earlier Than We Previously Thought 2016-02-17T05:00:00Z Comparing the Altai genome to modern human DNA confirmed the interbreeding. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z Neanderthals weren’t the only ancient group to interbreed with humans. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z He said that the interbreeding could have occurred anywhere in southern Asia. Oldest known case of Neanderthal-human sex revealed by DNA test 2016-02-17T05:00:00Z Neanderthals and modern humans were interbreeding much earlier than was previously thought, scientists say. Neanderthals and humans interbred '100,000 years ago' - BBC News 2016-02-17T05:00:00Z The interbreeding resulted in gene flow from modern humans to the Neanderthals, according to the research. Neanderthals and Humans Interbred Earlier Than We Previously Thought 2016-02-17T05:00:00Z Eventually, however, Dr. Castellano persuaded him the data were strong, and Dr. Viola looked over the fossil record for possible explanations for the interbreeding. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z They may have also interbred more recently in Eastern Europe: DNA from a 40,000-year-old human skeleton from Romania suggests the individual may have had a Neanderthal great-great grandparent. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z In addition, the study doesn't actually reveal much about the interbreeding event itself. Humans and Neanderthals had sex a lot earlier than scientists thought 2016-02-17T05:00:00Z But ancestors of modern people interbred with Neanderthals about 50,000 years ago, after leaving Africa. Bits of Neanderthal DNA may raise risk of depression, tobacco addiction 2016-02-12T05:00:00Z So for people of Eurasian ancestry, he said, “at least today, Neanderthal interbreeding was not so good to us.” Study: Neanderthal DNA may influence modern depression risk 2016-02-11T05:00:00Z That genetic legacy is the result of interbreeding roughly 50,000 years ago between Neanderthals and the common ancestors of Europeans and Asians. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z The discovery of yet another period of interbreeding between early humans and Neanderthals is adding to the growing sense that sexual encounters among different ancient human species were commonplace throughout their history. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z That suggests humans and Neanderthals interbred several times. Humans and Neanderthals had sex a lot earlier than scientists thought 2016-02-17T05:00:00Z It is recognised now that our direct forebears interbred with Neanderthals about 50,000 years ago, when we entered Eurasia from Africa. 'Health risk' legacy from Neanderthals - BBC News 2016-02-12T05:00:00Z But ancestors of modern people interbred with Neanderthals about 50,000 years ago after leaving Africa. Study: Neanderthal DNA may influence modern depression risk 2016-02-11T05:00:00Z In a study published on Wednesday in Nature, a team of scientists reports that another instance of interbreeding left Neanderthals in Siberia with chunks of human DNA. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z So before researchers discover the next one, here’s a rundown of the interbreeding episodes that they have already deduced from studies of ancient DNA. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z To estimate the timing of the interbreeding event, the researchers performed a statistical analyses based on the size and the clustering of the DNA fragments. Humans and Neanderthals had sex a lot earlier than scientists thought 2016-02-17T05:00:00Z But, during the thousands of years the two species coexisted, they also interbred. Neanderthal DNA may account for nicotine addiction and depression 2016-02-11T05:00:00Z Researchers from Vanderbilt University have confirmed a small but tangible link between Neanderthal DNA inherited by our interbreeding ancestors, and wide range of traits from blood clotting to depression. Neanderthal DNA can influence everything from your skin to your cigarette habit 2016-02-11T05:00:00Z Instead, he thinks the scenario that best fits the evidence is that humans expanding into the Middle East encountered and interbred with Neanderthals there. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z Denisovans, a group discovered from remains in a cave near southern Siberia’s Altai Mountains, may have once lived all across Asia, giving them ample opportunity to interbreed with humans there. Evidence mounts for interbreeding bonanza in ancient human species 2016-02-16T05:00:00Z In this particular case, the technique revealed that the Siberian Neanderthal's ancestors interbred with humans some 100,000 years ago. Humans and Neanderthals had sex a lot earlier than scientists thought 2016-02-17T05:00:00Z Modern people with European or Asian roots carry a tiny bit of Neanderthal DNA because their ancestors interbred with Neanderthals about 50,000 year ago. A new study says a person's risk of becoming depressed or hooked on smoking may be influenced by DNA inherited from Neanderthals 2016-02-11T05:00:00Z Gering says it is possible that interbreeding between the two populations allowed the birds' numbers to swell. When chickens go wild 2016-01-19T05:00:00Z Once the scientists accepted that the interbreeding was real, they estimated when it happened. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z Genetic evidence suggests that these different "tribes" interbred, with part of the genome of Neanderthals still present in humans alive today. Neanderthal genes 'boosted our immunity' - BBC News 2016-01-07T05:00:00Z Reich realized that by analysing the genomes of large numbers of people, he could see how immigration and interbreeding changed the genetics of entire regions. 365 days: Nature’s 10 2015-12-16T05:00:00Z AquaBounty says it has made the fish infertile to alleviate concerns that they could interbreed with wild stocks. Genetically engineered salmon is fit for dinner, FDA says in first decision of its kind 2015-11-19T05:00:00Z Some of the DNA in the Denisova 8 tooth hints at an even older interbreeding. In a Tooth, DNA From Some Very Old Cousins, the Denisovans 2015-11-16T05:00:00Z That pattern suggests that an African lineage of humans interbred with the ancestors of the Altai Neanderthal after they split from other Neanderthals. Ancient Humans May Have Left a Genetic Mark on Neanderthals 2016-02-17T05:00:00Z Today, most of the 500,000 remaining bison in the U.S. and Canada have at least some domestic cow DNA because of interbreeding. Rare bison free to roam Larimer County prairie 2015-11-07T05:00:00Z One common definition of a species is a population that will not interbreed with outsiders. Greater than the sum of its parts 2015-10-29T04:00:00Z Surprisingly, the Reserva specimen contained traces of Cerro Fatal DNA, indicating the two species “can interbreed, but they tend not to,” said Dr. Caccone, who speculated that people occasionally brought the two tortoise types together. New Species of Galápagos Tortoise Is Identified 2015-10-21T04:00:00Z They might lose the physical ability to interbreed as the populations diverge further. Animal behaviour: Come mate with me : Nature : Nature Publishing Group 2015-10-06T04:00:00Z They argued that such studies have little relevance for human populations that interbreed all the time. The hidden risks for ‘three-person’ babies 2015-09-22T04:00:00Z Genetic evidence suggests that soon after leaving Africa, they interbred to some extent with the Neanderthals and a mysterious population in Asia called the Denisovans. Human Evolution 101 2015-09-11T04:00:00Z The lizards still interbreed and are thus one species. Veggies in the making 2015-09-10T04:00:00Z By studying the genes of pigs and wild boars, researchers have discovered that domestic pigs in Europe interbred with European wild boards at multiple occasions after their initial domestication by humans. Domestic pigs have more wild hog in them than we thought 2015-08-31T04:00:00Z Researchers have assumed that so much interbreeding should have caused boars and pigs to look more alike than they do. The taming of the pig took some wild turns 2015-08-31T04:00:00Z By initiating so many innovative reforms back in the 1980s, Deng Xiaoping not only created some strange bedfellows, but bequeathed a complex legacy of interbred institutions to later generations. Why China’s stock market bubble was always bound to burst | Orville Schell 2015-07-16T04:00:00Z Because of interbreeding with the wild feral burro, mules have slightly larger cranial capacity and are believed to have higher intelligence, even though people interpret that sometimes as being ornery. How a 2,000-Mile Trail Helped Define The American Mindset 2015-07-12T04:00:00Z There’s no mention of migration into the Arctic, which was the last geographical area to be permanently inhabited, nor much discussion of older hominin forms other than the ones that likely interbred with us. Review: 'First Peoples' Series Chronicles Origins And Spread Of Modern Humans 2015-06-24T04:00:00Z Modern humans and Neanderthals interbred in Europe, an analysis of 40,000-year-old DNA suggests. Modern humans and Neanderthals 'interbred in Europe' - BBC News 2015-06-22T04:00:00Z There have been hints before at this kind of interbreeding in dogs and in horses. The taming of the pig took some wild turns 2015-08-31T04:00:00Z The finding that also indicates that interbreeding with Neanderthals occurred much more recently than previously known. Ancient Romanian jawbone sheds light on Neanderthal interbreeding 2015-06-22T04:00:00Z Chances are, interbreeding happened more often than previously thought. This early European’s jaw suggests his great-great-grandparent was a Neanderthal 2015-06-22T04:00:00Z These herders interbred with local farmers and created the Corded Ware culture of central Europe, named for the twisted cord imprint on its pottery. Nomadic herders left a strong genetic mark on Europeans and Asians 2015-06-10T04:00:00Z "In the last few years, we've documented interbreeding between Neanderthals and modern humans, but we never thought we'd be so lucky to find someone so close to that event." Modern humans and Neanderthals 'interbred in Europe' - BBC News 2015-06-22T04:00:00Z This selection likely created “islands of domestication,” sets of genes that were passed on in the pigs despite interbreeding, the researchers suggest. The taming of the pig took some wild turns 2015-08-31T04:00:00Z The study, published in the journal Nature, indicates that our species interbred with Neanderthals in Europe as well, not just in the Middle East as previously thought, Pääbo said. Ancient Romanian jawbone sheds light on Neanderthal interbreeding 2015-06-22T04:00:00Z Scientists hope to boost a species thinned by loss of habitat and interbreeding with the American crocodile. Baby crocodiles, offspring of Castro gift, reach Cuban swamp 2015-06-05T04:00:00Z But the rate at which species interbreed is accelerating because of climate change, researchers say. Global Warming Spawns Hybrid Species 2015-06-01T04:00:00Z Greg Ruggerone, a salmon scientist with Natural Resources Consultants, a company specializing in fish ecology and fisheries management, says he is most worried about interbreeding of wild and hatchery fish. Wild salmon may not be as wild as you think 2015-05-28T04:00:00Z It is not clear how often early humans and Neanderthals interbred in Europe. Early European may have had Neanderthal great-great-grandparent 2015-05-12T04:00:00Z Previous research suggested this interbreeding occurred 50,000 to 60,000 years ago, before our species, arising in Africa, trekked into Europe, Asia and beyond. Ancient Romanian jawbone sheds light on Neanderthal interbreeding 2015-06-22T04:00:00Z The two groups interbred, adding some Neanderthal DNA to our present-day genes. 40,000-year-old teeth suggest an ancient culture belonged to humans, not Neanderthals 2015-04-23T04:00:00Z As rainbow trout meet and interbreed with dwindling cutthroat trout populations, the survival of cutthroat trout is at risk. Global Warming Spawns Hybrid Species 2015-06-01T04:00:00Z "When hatchery fish interbreed with wild fish, it confounds our interpretation of the wild stock, making it hard to evaluate." Wild salmon may not be as wild as you think 2015-05-28T04:00:00Z The Cuban crocodile, once found across the Caribbean, is restricted today to two swamps in Cuba, where it is threatened by interbreeding with American crocodiles, habitat loss and illegal hunting. Kids of Cold War crocs going to Cuba on conservation mission 2015-04-19T04:00:00Z Oh man guys, buckle up: two of Florida’s most destructive invasive termite species are interbreeding, and their offspring is a new, hybrid species of “super-termite” that’s even worse than its parents. Florida’s invasive termite species are now interbreeding, and the resulting “super-termite” is basically the worst thing imaginable 2015-03-26T04:00:00Z They interbred with local residents instead of replacing them wholly, as some historians and archaeologists have suggested. British Isles mapped out by genetic ancestry 2015-03-17T04:00:00Z The eastward-migrating coyotes that went north of the Great Lakes and interbred with wolves grew and spread in population much more quickly than those without wolf DNA to the south. University of Michigan researchers track coyote-wolf hybrids 2015-03-02T05:00:00Z They painted a complex picture, reflecting much interbreeding over hundreds of thousands of years. Plugging away 2015-02-25T05:00:00Z In 2010, scientists made a startling discovery about our past: About 50,000 years ago, Neanderthals interbred with the ancestors of living Europeans and Asians. A New Theory on How Neanderthal DNA Spread in Asia 2015-02-19T05:00:00Z This ‘Anatolian hypothesis’ is supported by well-documented migrations into Europe, where agriculturalists replaced or interbred with the existing hunter-gatherers. Steppe migration rekindles debate on language origin 2015-02-17T05:00:00Z For the genetic results to make sense, modern humans must have interbred with Neanderthals after they migrated out of Africa but before they spread into Europe and Asia. Our Neanderthals, Ourselves 2015-02-12T05:00:00Z Though highly unusual, coyotes, wolves and even dogs have been known to interbreed on occasion and produce viable offspring also capable of breeding. University of Michigan researchers track coyote-wolf hybrids 2015-03-02T05:00:00Z This indicates that the species have continued to interbreed or hybridise, after diversifying when they first arrived on the islands. Darwin finches' messy family tree 2015-02-11T05:00:00Z A 55,000-year-old incomplete skull found in Israel may belong to a human group that interbred with Neanderthals. New Skull Could Be from Human Group that Interbred with Neandertals 2015-01-29T05:00:00Z Scientists say the new discovery offers the possibility that a spell of interbreeding between Neanderthals and early humans occurred at this time and in this region. Ancient Skull Yields Clues About Human Migration 2015-01-29T05:00:00Z The spot “is the best candidate for the interbreeding of modern humans with Neanderthals,” one of the authors of the Nature study, Israel Hershkovitz, of Tel Aviv University, told the Guardian. Our Neanderthals, Ourselves 2015-02-12T05:00:00Z Previous genetic evidence suggests our species and Neanderthals interbred during roughly the time period represented by the skull, with all people of Eurasian ancestry still retaining a small amount of Neanderthal DNA as a result. Prehistoric skull a key 'piece of the puzzle' in story of humanity 2015-01-28T05:00:00Z The most extensive genetic study ever conducted of Darwin's finches, from the Galapagos Islands, has revealed a messy family tree with a surprising level of interbreeding between species. Darwin finches' messy family tree 2015-02-11T05:00:00Z All non-Africans possess a small amount of Neanderthal ancestry, pointing to an interbreeding event just after modern humans left their homeland but before they diversified into different populations. Skull clue to exodus from Africa 2015-01-28T05:00:00Z According to this model, modern humans originated from Africa but then evolved through interbreeding with European Neanderthals. This skull may provide a new link between Neanderthals and modern humans 2015-01-28T05:00:00Z It is no longer news that Neanderthals and modern humans were similar enough to interbreed. Our Neanderthals, Ourselves 2015-02-12T05:00:00Z The researchers further concluded that the Manot specimen “provides important clues about the morphology of modern humans in close chronological proximity to a probable interbreeding event with Neanderthals.” Ancient Skull Adds New Insight to Story of Human Evolution 2015-01-28T05:00:00Z A 2010 analysis, for example, found that up to 2% of the genomes of today’s Europeans and Asians consist of Neandertal DNA, a clear sign of at least limited interbreeding in the past. Humans and Neandertals likely interbred in Middle East 2015-01-28T05:00:00Z He said there was some evidence that humans had lived alongside Neanderthals in Europe and had interbred. Speed dating Neanderthals wanted 2015-01-15T05:00:00Z The increase in interbreeding took place around that same time as the introduction of a health campaign in Mali, in which officials distributed insecticide-treated nets to its citizens. Treated mosquito nets may have created an insecticide resistant mosquito 2015-01-05T05:00:00Z These findings led scientists to a hypothesis for how these strange species came about: Sometimes individuals from two different species of whiptail lizards interbreed, and their hybrid offspring carry two different sets of chromosomes. The Strange Tale of a New Species of Lizard 2014-12-18T05:00:00Z Could this support recent genetic evidence that modern Homo sapiens and their Neanderthal cousins interbred, perhaps in the Middle East and most likely between 65,000 and 47,000 years ago? Ancient Skull Adds New Insight to Story of Human Evolution 2015-01-28T05:00:00Z Their DNA survives in non-African human genomes, thanks to ancient interbreeding, and two teams this year catalogued humans’ Neanderthal heritage. 365 days: 2014 in science It probably stems from interbreeding in the travelling circus where he began his life. The tiger who flew halfway across the world 2014-12-11T05:00:00Z They found that the variations that appeared in A. coluzzii started to pop up when the species began to interbreed with A. gambiae more often. Treated mosquito nets may have created an insecticide resistant mosquito 2015-01-05T05:00:00Z Over thousands of generations, the animals may become genetically distinct and can no longer interbreed. The Strange Tale of a New Species of Lizard 2014-12-18T05:00:00Z The exotic orcas don’t pose any danger to resident killer whales, nor do the groups interbreed, Balcomb said. ‘Exotic’ orcas visit inland waters in unprecedented numbers 2014-11-26T05:00:00Z With all this interbreeding, difficulties inevitably arose, such as the hemophilia that was passed on to several of Victoria’s children, especially the unhappy Leopold. Queen for many a day The domestic and forest forms can interbreed, but for the most part they avoid each other. Gene turns mosquito into vampire 2014-11-12T05:00:00Z Basically, subspecies within a species are geographically, morphologically, and genetically distinct populations but still maintain the possibility of successful interbreeding. There Is No Such Thing as Race Of course, scientists have long known that some related species sometimes interbreed. The Strange Tale of a New Species of Lizard 2014-12-18T05:00:00Z These people interbred at the edges of their separate populations, keeping the entire complex network interconnected—and so giving the ancient Kostenki man genes from three different groups. European genetic identity may stretch back 36,000 years 2014-11-06T05:00:00Z Moreover, some environmentalists said, the original target of 300 wolves capable of interbreeding across state lines was a minimum for what was needed, not a figure ensuring a healthy population. For Gray Wolves, a Success Story Not Without Detractors 2014-11-02T04:00:00Z And the genome, extracted from a fossil thighbone found in Siberia, added strong support to a provocative hypothesis: Early humans interbred with Neanderthals. Reconstructed Genome of 45,000-Year-Old Man Offers Clues on Modern Humans 2014-10-22T04:00:00Z By extrapolating the size of DNA chunks backwards, Prof Paabo and his colleagues were able to calculate when the first interbreeding with Neanderthals occurred. DNA yields secrets of human pioneer 2014-10-22T04:00:00Z A deluge of genetic data in recent years suggests that interbreeding between species is more widespread than scientists ever imagined. Baffling Genetic Barrier Prevents Similar Animals from Interbreeding 2014-08-21T04:00:00Z The recent analysis of Neanderthal DNA shows that Neanderthals and modern humans not only crossed paths, but interbred. Neanderthals in Europe Died Out Thousands of Years Sooner Than Some Thought, Study Says 2014-08-20T04:00:00Z DNA recovered from remains in Europe and western Asia, for example, show that humans and Neanderthals interbred more than 50,000 years ago, probably as the common ancestor of Europeans and Asians emerged from Africa. Neanderthals: Bone technique redrafts prehistory 2014-08-19T04:00:00Z They used that information to determine how long ago Neanderthals and humans interbred. Reconstructed Genome of 45,000-Year-Old Man Offers Clues on Modern Humans 2014-10-22T04:00:00Z Animals at high latitudes — where related species tend to have diverged more recently and can therefore interbreed more easily — are shifting their ranges in response to rising temperatures and melting sea ice. Should You Fear the Pizzly Bear? 2014-08-14T04:00:00Z Butterfly Effect Wolf’s crows aren’t the only set of interbreeding species that maintain their distinct identity. Baffling Genetic Barrier Prevents Similar Animals from Interbreeding 2014-08-21T04:00:00Z It ranges from Brazil to Greenland, yet despite this wide geographic range, genetic evidence indicates that every American eel somehow belongs to one gigantic interbreeding population. Glass Eel Gold Rush Casts Maine Fishermen against Scientists [Slide Show] 2014-08-05T04:00:00Z The long overlap provided plenty of time for cultural exchange and interbreeding, he adds. Neanderthals: Bone technique redrafts prehistory 2014-08-19T04:00:00Z Hatchery fish reduce the fitness of wild fish if they interbreed, and they compete with wild fish for habitat and food. Biologists track fish recovery in tough conditions on Elwha River 2014-07-27T04:00:00Z Indeed, the Grants speculate that families of closely related species like the Galápagos finches, which can adapt rapidly by interbreeding, may endure better than lone species. Should You Fear the Pizzly Bear? 2014-08-14T04:00:00Z A biological species is a group of individuals capable of interbreeding and producing fertile offspring. Words We Love Too Much 2014-07-22T04:00:00Z Another danger arises from the ability of closely related species to interbreed. A Call to Fight Malaria One Mosquito at a Time by Altering DNA 2014-07-17T04:00:00Z He says the interbreeding event with Denisovans probably happened a very long time ago. Altitude gene 'from extinct species' 2014-07-02T04:00:00Z She was also able to identify six smaller subpopulations, which show signs of interbreeding but to a lesser degree. First Major Genetic Study of Elusive South African Dolphin Reveals a Species in Peril 2014-05-09T13:38:21Z Botanists could never ignore hybridization — it occurs between plants too frequently — but interbreeding among animals became the “grossest blunder in sexual preference which we can conceive of,” as one author wrote in 1930. Should You Fear the Pizzly Bear? 2014-08-14T04:00:00Z If we define species boundaries as separating groups of organisms that can’t interbreed, can asexual organisms be thought of as a species? Denizens of the Dirt: A Map of Microbes Across California 2014-05-03T13:00:33Z “It's extremely compelling evidence that there were fitness costs to interbreeding,” he says. Human evolution: The Neanderthal in the family 2014-03-26T18:20:23.870Z But he said it was a clear and direct example of humans adapting to new environments through genes acquired via interbreeding with ancient human species. Altitude gene 'from extinct species' 2014-07-02T04:00:00Z On his computer he keeps an up-to-date list of his progeny to reduce the risk that they might unwittingly interbreed. Is Ed Houben Europe's most virile man? 2014-03-19T09:10:52Z Since then, the prevailing wisdom among evolutionary biologists has been that interbreeding — the creation of hybrid offspring — is a potentially lineage-ending mistake. Should You Fear the Pizzly Bear? 2014-08-14T04:00:00Z Non-African modern humans carry a remnant of Neandertal DNA from interbreeding events that have been postulated to have occurred as humans migrated out of Africa. [Report] Resurrecting Surviving Neandertal Lineages from Modern Human Genomes 2014-02-27T19:26:43.421Z Unlike the hunt for ghost populations, which relies on statistical population models, this approach allows researchers to identify specific regions of the genome acquired by interbreeding. Human evolution: The Neanderthal in the family 2014-03-26T18:20:23.870Z Gene types that influence disease in people today were picked up through interbreeding with Neanderthals, a major study in Nature journal suggests. Neanderthals gave us disease genes 2014-01-29T18:46:10Z Genes that cause disease in people today were picked up through interbreeding with Neanderthals, a major study in Nature journal suggests. Neanderthals gave us disease genes 2014-01-29T18:46:10Z It’s possible, of course, that this sort of interbreeding has always occurred and that we’re detecting it only now because we possess the tools to do so. Should You Fear the Pizzly Bear? 2014-08-14T04:00:00Z Researchers used genetic samples to determine that spinner and striped dolphins interbred to form a third species, the clymene, also known as the short-snouted spinner dolphin. Observatory: Scientists Find Rare Hybrid of Two Other Dolphin Species 2014-01-13T22:26:52Z And Akey believes that humans are likely to bear genetic scraps from other extinct species, including some that interbred with the ancestors of humans in sub-Saharan Africa. Human evolution: The Neanderthal in the family 2014-03-26T18:20:23.870Z Joshua Akey said his team's results were compatible with there having been multiple pulses of interbreeding between modern humans and Neanderthals. Neanderthals gave us disease genes 2014-01-29T18:46:10Z It was not surprising to find that Neanderthals and modern humans interbred, a clear expectation of the biological species concept. Viewpoint: Human evolution, from tree to braid 2013-12-31T11:54:12Z The first complete Neanderthal genome was published, at the same time showing inbreeding within Neanderthal groups as well as reports of interbreeding between Neanderthals and anatomically modern humans. Year in digs: How 2013 looked in archaeology 2013-12-31T03:00:04Z Analyses indicate that the higher risk version of SLC16A11 was introduced into modern humans through interbreeding between early modern humans and Neanderthals. Diabetes risk 'from Neanderthals' 2013-12-25T18:27:13Z Akey sees this as possible evidence that Neanderthals interbred with ancient humans on at least two separate occasions: once with the ancestors of all Eurasians, and later with a population ancestral only to east Asians. Human evolution: The Neanderthal in the family 2014-03-26T18:20:23.870Z These studies revealed unexpected links between human groups, evidence for inbreeding and interbreeding, and the presence of . Science and environment news highlights of 2013 2013-12-25T01:53:51Z The genome also contained evidence of more interbreeding among ancient human populations than was previously known. The Week: New Insights From Old DNA, Flowing Ants, Insecticides in Question 2013-12-23T23:08:36Z The new Neanderthal genome also contains evidence of more interbreeding between ancient human populations than previously known. Matter: Toe Fossil Provides Complete Neanderthal Genome 2013-12-18T18:09:09Z But it also threw up a surprise result: that the Denisovans interbred with a mysterious fourth group of early humans that were living in Eurasia at the time. Mystery early human revealed in DNA 2013-12-18T18:00:36Z They proposed that a now-extinct population in northern Eurasia had interbred with both the ancestors of Europeans and a Siberian group that later migrated to the Americas. Human evolution: The Neanderthal in the family 2014-03-26T18:20:23.870Z It also revealed that Neanderthals and humans interbred about 50,000 years ago. Matter: At 400,000 Years, Oldest Human DNA Yet Found Raises New Mysteries 2013-12-04T18:23:08Z In species such as humans, individuals from different genetic backgrounds interbreed freely without ill effects. Regulators weigh benefits of ‘three-parent’ fertilization 2013-10-16T17:20:23.820Z The new genome reveals not just inbreeding but interbreeding. Matter: Toe Fossil Provides Complete Neanderthal Genome 2013-12-18T18:09:09Z Not all evolutionary biologists agree that climate change is behind recently discovered cases of interbreeding. Southern Flying Squirrels Go A-Courtin' in Canada 2013-10-12T02:37:17Z Everyone stuck to their way of life and rarely interbred. Stone Age farmers, hunters kept their distance 2013-10-10T18:00:00Z They then interbred not only with Neanderthals, but with Denisovans, too. Matter: At 400,000 Years, Oldest Human DNA Yet Found Raises New Mysteries 2013-12-04T18:23:08Z The monograph suggests that C. lupus and C. lycaon once interbred in the Great Lakes region, the results being the grey wolves of the Great Lakes region. Grey wolves left out in the cold 2013-09-12T13:50:23.897Z The percentages show how much DNA in a genome arrived through interbreeding. Matter: Toe Fossil Provides Complete Neanderthal Genome 2013-12-18T18:09:09Z But the Northern and Southern species have been getting cozy and are interbreeding. Southern Flying Squirrels Go A-Courtin' in Canada 2013-10-12T02:37:17Z Many other mammals that diverged as recently as Neandertals and AMH are considered distinct species but can interbreed and produce fertile offspring. Readers Respond to "Firearms Facts" 2013-08-23T17:45:06.077Z Some critics predicted that interbreeding between genetically modified crops and wild plants would create “superweeds” — hybrid plants carrying the resistance gene. Looking for Ways to Beat the Weeds 2013-07-15T21:56:47Z Today, they are found exclusively in captive programmes where the limited numbers are interbred to maintain the distinctive fur colour. Genetics of white tigers pinpointed 2013-05-23T16:23:12Z Intriguingly, the Denisovan genome also contains hints of even more exotic interbreeding. Matter: Toe Fossil Provides Complete Neanderthal Genome 2013-12-18T18:09:09Z But more recently, Canadian wildlife researchers collected DNA evidence showing the two species can and do interbreed, as the Southern flier's habitat moves northward. Southern Flying Squirrels Go A-Courtin' in Canada 2013-10-12T02:37:17Z Amazingly, a single brood often contains multiple species, which grow alongside one another as nymphs and emerge from the ground in synchrony but do not interbreed. Deciphering the Strange Mathematics of Cicadas [Video] 2013-05-23T14:15:09.293Z But the presence of at least 2.5 percent of Neanderthal DNA in most humans with European roots exposes the secret of viable interbreeding in the Stone Age caves. From Neanderthal Molar, Scientists Infer Early Weaning 2013-05-22T17:04:43Z It more frequently follows accidental interbreeding of two closely related species. For Plants, Polyploidy Is Not a Four-Letter Word 2013-05-19T23:45:00.497Z Dr. Paabo and his colleagues concluded that modern humans interbred with both Neanderthals and Denisovans before those two lineages became extinct. Matter: Toe Fossil Provides Complete Neanderthal Genome 2013-12-18T18:09:09Z But in recent years geneticists have determined that, contrary to that conventional view, anatomically modern Homo sapiens did in fact interbreed with archaic humans, and that their DNA persists in people today. Finding My Inner Neandertal 2013-04-19T16:15:00.217Z However it happened, the newcomers seemed to have eliminated their competitors without interbreeding with them. Sex with Other Human Species Might Have Been Secret of Homo Sapiens Success (preview) 2013-04-19T11:15:00.363Z To examine those questions, scientists at the University of Missouri in Columbia recently interbred rats to create two very distinct groups of animals, one of which loves to run. Phys Ed: Why We’re Motivated to Exercise. Or Not. 2013-04-17T21:01:05Z When a mountain chain or some other physical barrier blocks that spread, a population may evolve into two genetically distinct groups that are no longer able to interbreed successfully. Blind Mole Rats Show Evolution in Action 2013-01-28T20:00:00Z To understand these genetics, Hoekstra and Weber crossed oldfield mice with deer mice, which are so closely related that they can interbreed. Building a Better Mouse Burrow Takes Few Genes 2013-01-16T18:05:00Z Lab animals that willingly put in the most miles on running wheels were interbred, resulting in the creation of a line of lab animals that excelled at running. Well: Exercise and the Ever-Smarter Human Brain 2012-12-26T05:01:09Z Some researchers define a species as any organisms that can actually, or potentially interbreed in the wild and produce fertile offspring. Are Western Chimpanzees a New Species of Pan? 2012-12-13T14:15:00.213Z The scientists of the new study say more work is needed to learn about interbreeding and the factors governing the expression of physical characteristics in hybrid individuals. Why Human-Neanderthal Sex Is Tricky to Prove 2012-12-11T01:15:00.200Z Now a genetics study reveals that the population patches are not as isolated as they seem, and that interbreeding occurs across rivers and mountainous areas. Observatory: Isolated Male Orangutans Travel Far to Mate 2012-10-26T16:00:02Z They say escaped fish pass on genetic weakness to wild salmon if interbreeding occurs. Scotland's salmon farm dilemma 2012-09-10T23:03:52Z This curious pattern suggests several possible scenarios, including that male Denisovans interbred with female modern humans, or that these unions were genetically incompatible, with natural selection weeding out some of the X chromosomes, Reich says. Genome Brings Ancient Girl to Life 2012-08-30T20:02:00Z Under this definition, western chimpanzees would not be reclassified because all subspecies of chimpanzee can interbreed and produce fertile offspring, even though they are reproductively isolated in the wild. Are Western Chimpanzees a New Species of Pan? 2012-12-13T14:15:00.213Z On Lopehelia I, the scientists on this team collected samples of Lophelia from three different sites in the Gulf and determined they were interbreeding and dispersing across distances of at least 370 km. Deep Sea Coral Clings to Oil Platform at Record Gulf Depth 2012-08-23T15:45:05.343Z A single interbreeding event in the distant past will probably, therefore, graft the immigrant's family tree onto that of the native population. Tracing the world's common ancestor 2012-08-22T00:10:03Z To me the interbreeding question is not whether there was hybridization but whether there was any hybridization that affected the subsequent evolution of humans. Did Humans and Neanderthals Really Interbreed? 2012-08-15T22:05:41Z The team confirms that the Denisovans interbred with the ancestors of some living humans and found that Denisovans had little genetic diversity, suggesting that their small population waned further as populations of modern humans expanded. Genome Brings Ancient Girl to Life 2012-08-30T20:02:00Z Previously, it had been suggested that shared parts of the genomes of these two populations were the result of interbreeding. Neanderthal breeding idea doubted 2012-08-13T19:43:14Z For more complex, multicellular life, scientists often adhere to the biological definition of a species—two groups become so genetically distinct they cannot interbreed. See Change: Rapid Emergence of New Sea Star Species Illustrates Evolution's Power 2012-08-10T15:45:02.653Z North African Jews—and Moroccan/Algerian Jews in particular—showed a close genetic connection to Ashkenazi and Sephardic Jews, and little evidence of interbreeding with contemporary non-Jewish populations in North Africa. The Roots of Jewishness 2012-08-06T20:00:00Z Dr. Tishkoff’s team interprets these divergent DNA sequences as genetic remnants of an interbreeding with an archaic species of human. Cousins of Neanderthals Left DNA in Africa, Scientists Report 2012-07-26T16:02:40Z The team found "Denisovan DNA" in some island Southeast Asians and concluded that their ancestors also interbred with the ancestors of Denisovans, probably in Asia. Genome Brings Ancient Girl to Life 2012-08-30T20:02:00Z All argue for an African origin, but an important distinction in these competing theories is whether or not interbreeding - or "hybridisation" - between modern and ancient humans has occurred. Neanderthal breeding idea doubted 2012-08-13T19:43:14Z Sequencing of ancient DNA has shown that Neandertals interbred with early modern humans—often enough that up to 4 percent of the DNA in people outside Africa today comes from Neandertals. Did Modern Humans Not Environmental Catastrophe Extinguish the Neandertals? 2012-07-24T16:45:00.217Z One thing the evidence does suggest, however, is that there may be more interbreeding ahead. Side Effects: Brown Bears and Polar Bears Split Up, but Continued Coupling 2012-07-23T17:15:15Z And, of course, it’s led to a rethinking of our relationship with them; clearly there was viable interbreeding. A Conversation With Chris Stringer: Chris Stringer on the Origins and Rise of Modern Humans 2012-07-16T17:20:00Z "The last time new stock was introduced there was 1983 and so interbreeding is an issue," Mr Kiddy said. Flying pigs head to the Falklands 2012-07-10T14:43:53Z Neanderthals were close evolutionary cousins of our own species - Homo sapiens Similarities between the DNA of modern people and Neanderthals are more likely to have arisen from shared ancestry than interbreeding, a study reports. Neanderthal breeding idea doubted 2012-08-13T19:43:14Z But the genetic picture, Lalueza-Fox says, suggests "highly mobile" groups that kept in touch and interbred continent-wide. Ancient Hunter-Gatherers Kept in Touch 2012-06-28T17:00:00Z Members of Congress have voiced their fears about such ‘frankenfish’, and environmental groups are concerned that transgenic animals might escape and interbreed with wild populations. Model pigs face messy path 2012-06-27T17:50:25.413Z Maybe a parsimonious view is that there was a single interbreeding period when modern humans came out of Africa. A Conversation With Chris Stringer: Chris Stringer on the Origins and Rise of Modern Humans 2012-07-16T17:20:00Z Speciation is common in nature when sub-populations of a single kind of life become separated or reproductively isolated, adapting to their own conditions to the extent that they may no longer interbreed. Migration from Earth: Human Evolution and Space Colonization 2012-06-15T20:15:00.223Z Prof David Reich, from Harvard University in Cambridge, US - an exponent of the hybridisation theory - is not convinced that the data represents a powerful argument against interbreeding. Neanderthal breeding idea doubted 2012-08-13T19:43:14Z Then there is the new genetic evidence of modern human-Neanderthal interbreeding, suggesting a closer relationship than had been generally thought. New Dating Puts Cave Art in the Age of Neanderthals 2012-06-14T18:08:51Z And the new analysis certainly seems to support that hypothesis, with no significant signal of interbreeding detected in the DNA of the apes. Bonobo's genetic code laid bare 2012-06-13T19:52:07Z Western Asia becomes a critical area for this possibility of interbreeding. A Conversation With Chris Stringer: Chris Stringer on the Origins and Rise of Modern Humans 2012-07-16T17:20:00Z It may be possible, for instance, to determine more precisely when someone’s ancestors from different populations interbred, says Sarah Tishkoff, a geneticist at the University of Pennsylvania in Philadelphia. Ancestry testing goes for pinpoint accuracy 2012-06-06T17:20:30.787Z It is a question of knowing which genes sitting on what part of the genome control which traits — because this helps to avoid undesirable knock-on effects of interbreeding for a particular characteristic. You say tomato 2012-05-30T17:50:00.850Z They are close enough to modern humans to have interbred with us. New Dating Puts Cave Art in the Age of Neanderthals 2012-06-14T18:08:51Z "In the last two years it has become clear that there was considerable interbreeding between Homo sapiens and Neanderthals ... about 2% to 4% of the DNA of each individual European is Neanderthal," he said. DNA to shed light on yeti claims 2012-05-22T15:57:28Z |
随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条,基本涵盖了全部常用单词及词组的例句翻译及用法,是英语学习的有利工具。