| 单词 | natural selection |
| 例句 | He called it “descent with modification,” and he used the term “natural selection” for the mechanism of change. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z But even as geneticists celebrated the synthesis of heredity, evolution, and natural selection, the material nature of the gene remained an unsolved puzzle. The Gene 2016-06-02T00:00:00Z The only answer that I can give to this problem is based on Darwin’s principle of natural selection. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Darwin had reasoned that evolution works via natural selection—but for natural selection to work, there had to be something natural to select. The Gene 2016-06-02T00:00:00Z Galton’s idea was simple: he would mimic the mechanism of natural selection. The Gene 2016-06-02T00:00:00Z The existence of such elites goes against the most fundamental principles of natural selection, since these dominant members of society willingly give up procreation. Sapiens: A Brief History of Humankind 2011-01-01T00:00:00Z For a variant of gross-beaked finch to appear on a Galápagos island by natural selection, two seemingly contradictory facts had to be simultaneously true. The Gene 2016-06-02T00:00:00Z But his studies on wild populations, variation, and natural selection had already provided crucial insights to these questions. The Gene 2016-06-02T00:00:00Z Alone in his study, he was committed to his theory of natural selection, the theory that would leave God out of creation. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z He was hinting here, in print, about the transmutation of species, about how new species were created, by adapting to their surroundings, by the means of natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z But, as Darwin and Wallace showed, there is another way, equally appealing, equally human, and far more compelling: natural selection, which makes the music of life more beautiful as the aeons pass. Cosmos 1980-01-01T00:00:00Z Those principles of crop development by artificial selection still serve as our most understandable model of the origin of species by natural selection. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z That’s why Darwin, in his great book On the Origin of Species, didn’t start with an account of natural selection. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z And what happened to genes upon natural selection? The Gene 2016-06-02T00:00:00Z The germ that spreads better leaves more babies and ends up favored by natural selection. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Charles’s long-range goal was to write the huge book he had intended from the beginning, including all the material and evidence he had amassed and would continue to amass about evolution by natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Each plant population becomes genetically programmed, through natural selection, to respond appropriately to signals of the seasonal regime under which it has evolved. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Those invaders get winnowed by natural selection, and only a few of them succeed in establishing themselves as human diseases. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z I had merely stumbled upon another lovely adaptation in nature, itself the product of micromutation and natural selection. Cosmos 1980-01-01T00:00:00Z He called his idea “modification by natural selection.” Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z With the rise of Darwinian theory, explanations were recast in terms of natural selection and of evolutionary descent. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z By the late 1930s, Dobzhansky began to realize that his understanding of genes, variation, and natural selection had ramifications far beyond biology. The Gene 2016-06-02T00:00:00Z It was those birds that had given him one of his eureka moments about natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Variation and natural selection offer cogent explanations of the mechanism by which evolution might occur within a species, but they do not explain the formation of species per se. The Gene 2016-06-02T00:00:00Z Others, such as those of gravity and natural selection, are commonly called theories. The Invention of Science 2015-09-17T00:00:00Z Darwin’s phrase “natural selection” refers to certain individuals of a species surviving better, and / or reproducing more successfully, than competing individuals of the same species under natural conditions. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z In the book, Charles was trying to make a strong, coherent, cogent argument for creation by natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z In short, diseases represent evolution in progress, and microbes adapt by natural selection to new hosts and vectors. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z It is done by simply passing the bits around from mind to mind, until something like natural selection makes the final selection, all on grounds of fitness. The Lives of a Cell 1974-01-01T00:00:00Z After all, microbes are as much a product of natural selection as we are. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Those that survived this “natural selection” would restart the grim cycle again—Sisyphus moving from one famine to the next. The Gene 2016-06-02T00:00:00Z To explain the intersection of genetics, natural selection, and evolution in formal terms, Dobzhansky resurrected two important words—genotype and phenotype. The Gene 2016-06-02T00:00:00Z Because Charles valued Gray’s friendship and needed his help in promoting natural selection, he did not rule out the possibility. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z He was furious about The Origin of Species and hated Charles’s theory of natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z If artificial selection can make such major changes in so short a period of time, what must natural selection, working over billions of years, be capable of? Cosmos 1980-01-01T00:00:00Z Darwin himself could scarcely have found a better example of the operation of natural selection than is provided by the way the mechanism of resistance operates. Silent Spring 1962-09-27T00:00:00Z Back in London, he talked with Hensleigh about science and religion, working out his thoughts about transmutation of species, about God, and about natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Charles’s American friend Asa Gray was one of those people who wanted to see God’s hand in the design of flowers, but he also thought that Charles’s argument for natural selection was right. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Our slowest defensive response is through natural selection, which changes our gene frequencies from generation to generation. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z Its founding tenets were borrowed from Darwin—but they grafted the logic of natural selection onto human societies. The Gene 2016-06-02T00:00:00Z In 1907, Alfred Russel Wallace, co-discoverer of evolution by natural selection, was asked to review one of Lowell’s books. Cosmos 1980-01-01T00:00:00Z Many people were scandalized—some still are—at both ideas, evolution and natural selection. Cosmos 1980-01-01T00:00:00Z But he felt certain that his theory was right, that new species were created all the time by the process of natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Starting with a population with natural variation in gene configurations, he had added a force of natural selection: temperature. The Gene 2016-06-02T00:00:00Z Even Alfred Russel Wallace, the naturalist who had also come up with the theory of natural selection, was a spiritualist, now working on a book that would be published soon—Miracles and Modem Spiritualism. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z Thus, natural selection acts oppositely on seeds and on fruits. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z After all, she was just the head of the English department, a job that in the scheme of natural selection at Permian ranked well behind football coach and band director, among others. Friday Night Lights: A Town, A Team, And A Dream 1990-01-01T00:00:00Z In Darwin's scheme, the rate of change of an organism was generally fixed, while the rate of natural selection could be amplified to accelerate evolution or dampened to decelerate it. The Gene 2016-06-02T00:00:00Z We and our pathogens are now locked in an escalating evolutionary contest, with the death of one contestant the price of defeat, and with natural selection playing the role of umpire. Guns, Germs, and Steel: The Fates of Human Societies 1997-03-01T00:00:00Z All the observations he made—on himself, his children, the animals and plants around him—were in service to his theory of natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z It is, so far, entirely a human invention, evolved by natural selection in the cerebral cortex for one simple reason: it works. Cosmos 1980-01-01T00:00:00Z That the mechanism of evolution is natural selection is the great discovery associated with the names of Charles Darwin and Alfred Russel Wallace. Cosmos 1980-01-01T00:00:00Z Indeed, if you coupled the genesis of spontaneous mutants—the giant-leaved Oenothera, say—with natural selection, then Darwin’s relentless engine was automatically set in motion. The Gene 2016-06-02T00:00:00Z The orbits of the present planets are the orbits of the survivors of this collisional natural selection, the stable middle age of a solar system dominated by early catastrophic impacts. Cosmos 1980-01-01T00:00:00Z Even Lyell, who did not agree with everything Charles was thinking, urged him to publish something about his theory of natural selection. Charles and Emma: The Darwins' Leap of Faith 2009-01-01T00:00:00Z In June 1858, Wallace sent Darwin a tentative draft of his paper outlining his general theory of evolution by natural selection. The Gene 2016-06-02T00:00:00Z Bodies were reduced to mere lumbering robots, and even the inner lives of our species became just one more consequence of natural selection in a materialist world. Insights Into the Brain, in a Book You’ll Wish You Had in College 2017-07-06T04:00:00Z As the title of the film suggests, the Kims almost seem to be obeying the dictates of natural selection: The host organism reveals a weak spot that permits infection; the parasite takes advantage and invades. "Parasite": A prickly, disturbing class-war thriller — and a signature film of 2019 2019-10-11T04:00:00Z But evolution has neither of these attributes, and if natural selection continued in another world it would feature the same random death and wasted lives we find here below. Intimations of immortality 2011-01-08T00:05:59Z Thus, while Nye aimed for the head, spouting the irrefutable evidence for natural selection, Ham aimed for the soul, arguing that accepting evolution means turning away from God. From Puritans to Ken Ham: The long history of creationism in America 2014-02-22T19:00:00Z Speaking fancifully is not meant to diminish the sophistication of the tools used by evolutionary biologists and their colleagues to explore the dynamics of natural selection. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z However, Newton agreed with Ussher well before scientists knew about radioactive or carbon dating and before Darwin discovered natural selection. Neil DeGrasse Tyson reveals age of Earth, creationists’ heads collectively explode 2014-04-25T11:50:00Z To begin with, Croizat believed that natural selection was a trivial part of evolution, not its main driving force. Evolution, but different: Adventures of a Darwin-doubting botanist 2014-01-12T15:00:00Z In other words, they say simple natural selection explains what happened. Colin Blakemore: how the human brain got bigger by accident and not through evolution 2010-03-28T00:05:00Z We currently work across six states in Mexico, with a network of over 2,000 farmers who have preserved and improved their corn through natural selection over hundreds of years. How masa harina changed the course of human history — and gave us better tacos 2023-07-16T04:00:00Z With this variation on Flemish carbonnade, beer would be a natural selection: a Belgian ale, a brown ale, or a dry stout or porter. Beef and Onions, Made Better With Beer 2018-01-26T05:00:00Z In this case, natural selection operated within the last 2,000 years. It’s time to leave the Paleo Diet in the past: Recent studies have failed to support its claims 2023-05-25T04:00:00Z The chemistry of life needs to congeal out of the primordial soup, and then natural selection needs to drive evolution all the way to organisms who can get a reasonable score on an IQ test. The Eerie Silence by Paul Davies | Book review 2010-03-28T00:15:00Z What this book did was popularise the idea that cooperation can indeed be favoured by natural selection. Sharing is in our nature 2012-08-13T11:45:00Z Of course, all these patterns do have to submit to the rigour of survival by natural selection. Survival of the Beautiful by David Rothenberg - review 2012-02-10T08:59:00Z Returning to evolutionary biology, scholars in that area of study have said much more about natural selection than I have here. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z Genes, rather than traits, became what natural selection selected. Survival of the Prettiest 2017-09-18T04:00:00Z Contrary to the idea that some people have, that natural selection selects purely for selfish qualities, Darwin was quite clear that natural selection can select for cooperative and collaborative qualities. Sharing is in our nature 2012-08-13T11:45:00Z Wallace instead submitted the manuscript to a journal, we might now talk of Wallace’s theory of natural selection. Evolution, but different: Adventures of a Darwin-doubting botanist 2014-01-12T15:00:00Z But while breeding, or artificial selection, requires an external agent, natural selection does not. Did Capital Punishment Create Morality? 2019-02-13T05:00:00Z Darwin’s theory of evolution by natural selection had been weakened by his ignorance of the laws of inheritance — he never read Mendel’s papers on the subject. The Groundbreaking Scientist Who Risked All in Pursuit of His Beliefs 2020-07-28T04:00:00Z And their track Vessels includes the immortal chat-up line: "You are a triumph of natural selection/ Every mutation leading to your perfection." New band of the day ? No 998: Tall Ships 2011-04-05T14:55:34Z So, given the scientific evidence for evolution by natural selection, he would say that creationist Christians are wrong in the way they interpret the Bible. Thomas Aquinas, part 3: scripture, reason and the being of God 2012-02-13T15:24:07Z The theory of evolution by natural selection states the "fittest" animals or plants are more likely to survive and reproduce. Statue for 19th Century pioneer 2012-09-21T06:39:11Z They are shaped by a kind of natural selection. Books of The Times: ?The Neighborhood Project? by David Sloan Wilson - Review 2011-08-31T22:00:25Z Charles Darwin posited the theory of natural selection – the notion that, over millennia, Earth's thriving creatures adapt themselves to their environment. TV highlights 12/03/2013 2013-03-12T07:00:16Z In addition, while natural selection favors behaviors that increase a man's number of children, it favors even more strongly behaviors that maximize those who grow up and become parents themselves. Fling or ring? Men's mating preferences not hard wired: study 2015-01-14T05:00:00Z Darwin’s theory, then, had been off: natural selection is not rare, slow, and imperceptible. What To Read Before Your Galápagos Vacation 2017-06-21T04:00:00Z The mutations are raw material on which Darwinian natural selection may act, or not, to produce new adaptations. The Pandemic’s Future — and Ours 2020-11-03T05:00:00Z You tweeted, “An emerging view, alternate to Darwin’s random mutations & natural selection is that consciousness may be the driver of complexity/evolution.” Deepak Chopra Has Never Been Sick 2019-10-17T04:00:00Z Such pictures made segregation seem like natural selection based on affinity and Jim Crow appear as inevitable. An Unnamed Girl, a Speculative History 2019-02-09T05:00:00Z For one thing, Darwin’s elevation of sexual selection threatened the idea of natural selection as the one true and almighty force shaping life — a creative force powerful and concentrated enough to displace that of God. Survival of the Prettiest 2017-09-18T04:00:00Z Alfred Russell Wallace in 1900: the Welsh naturalist developed a theory of natural selection at the same time as Charles Darwin. Alfred Russel Wallace, the forgotten man of evolution, gets his moment 2013-01-20T00:06:58Z "Dazzled and Deceived" traces how the phenomenon of mimicry in nature, discovered by 19th century English naturalists Henry Bates and Alfred Wallace, was seized upon as independent validation of Charles Darwin's theory of natural selection. Book on mimicry, camouflage wins UK Warwick Prize 2011-03-22T20:36:38Z All these things should shelter us from the brutal force of natural selection. TV review: Horizon: Are We Still Evolving? and Neighbourhood Watched 2011-03-02T23:30:00Z It used to be fashionable to think that genes, and indeed the process of natural selection, affected our bodies but not our minds. Sharing is in our nature 2012-08-13T11:45:00Z To understand this more fully, consider the following question: How do the mechanisms and assumptions of Darwin’s theory of natural selection lead to the diversity of life forms we see? Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z Given how often we fight, it would be astonishing if natural selection hadn’t given us some talent for dealing with that. Sharing is in our nature 2012-08-13T11:45:00Z It is a liability in strict natural selection terms, though obviously not enough of one to consign it to oblivion. Survival of the Beautiful by David Rothenberg - review 2012-02-10T08:59:00Z Most garden plants are highly evolved, either through natural selection or the artifice of the plant breeder. These larger-than-life sculptures elevate the timeless fern, with obsessive botanical accuracy 2020-06-01T04:00:00Z A superorganism means that evolution is working, natural selection is working at the level of the colony, not the level of the ant. My bright idea: Peter Miller on ants 2010-08-14T23:05:00Z His theories about natural selection were motivated in part by a desire to undermine racist notions promulgated by scientists. Darwin’s Dim View of the Second Sex 2021-02-05T05:00:00Z The first is natural selection, the endless inventive process of evolution that keeps molding organisms into more and more complex arrangements and codependencies. Just a Few Billion Years Left to Go 2020-02-17T05:00:00Z And there are no cops; a citizen’s only protection is natural selection, which has led some creatures to generate limited means of protection: spines, camouflage, speed, poison and sometimes plain loathsome ugliness. Favorite Place: Sharing Paradise With the Barracuda 2012-09-07T17:12:11Z In the end, they settled for a face-saving requirement that students consider gaps in fossil records and whether natural selection is enough to explain the complexity of human cells. Texas is editing the science out of our textbooks 2013-09-11T15:37:00Z Charles Darwin always said that the theory of natural selection occurred to him on 28 September 1838 while he was reading Thomas Malthus's essay on population; suddenly, the mechanism of evolution seemed blindingly straightforward. Steven Johnson: 'Eureka moments are very, very rare' 2010-10-19T19:30:00Z The ability to re-engage skills that have lain dormant for years seems at first to be inconsistent with a prediction that might be made by applying the theory of natural selection to individual brains. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z In that massive free-for-all, the fittest sperm reached the eggs and were rewarded with the prize of bringing their DNA into natural selection’s next round. Animal penises’ amazing evolution 2012-06-12T15:40:00Z Above all, he sees the Darwinian syllogism of evolution by natural selection as a "universal acid" that applies to animate and inanimate alike, to species and societies, to technologies and philosophies. Intuition Pumps and Other Tools for Thinking by Daniel C Dennett – review 2013-05-15T06:00:03Z The most important is that species evolve by natural selection, the bedrock idea of evolutionary biology proposed by Charles Darwin. When the Aliens Arrive, What Will They Look Like? A Zoologist Has Answers 2021-03-16T04:00:00Z He has been a patent agent and an inventor, and eventually his work with electrical and digital systems led him to notice something his church hadn’t taught him about: the power of natural selection. Former Christian fundamentalist: Science robbed me of my faith 2013-09-09T00:00:00Z This superpowered stink is the result of natural selection, which is how animals evolve, or change, over time. What’s that smell? For some animals, their stink helps keep them alive. 2018-08-13T04:00:00Z Disney’s plan to greenlight a film about Darwin’s voyage on board the HMS Beagle in the 1830s – the expedition that revolutionised scientific understanding of evolution and natural selection – was made public a week ago. Glenn Beck planning boycott of Charles Darwin movie 2015-07-01T04:00:00Z Black holes play a role in a form of cosmic natural selection, argues Lee Smolin. Time Reborn by Lee Smolin; Farewell to Reality by Jim Baggott – review 2013-06-10T08:00:01Z Hailing a cab at Bryant Park — a necessity for many attendees given the height of their stilettos — was an exercise in natural selection. New York Fashion Week: At New Site, No Runway Jostling 2010-09-09T06:38:00Z In short, before they became linked as the independent discoverers of natural selection, Darwin and Wallace had already become the first modern historical biogeographers. Evolution, but different: Adventures of a Darwin-doubting botanist 2014-01-12T15:00:00Z Still, the man who outlined the laws of natural selection well understood the evolutionary purpose of displays that, in humans, are often dismissed as mere vanity. The Peacocks Return 2021-07-14T04:00:00Z It was hard, in 1860, to get one’s mind around evolution by natural selection, and it still is. Did Capital Punishment Create Morality? 2019-02-13T05:00:00Z But by the 1940s, scientists began to reach consensus over the central role of natural selection in the evolutionary process. From Puritans to Ken Ham: The long history of creationism in America 2014-02-22T19:00:00Z The celebration of the great scientist's bicentenary last year courteously sidestepped the fact that most cutting-edge biologists now regard natural selection as little more than cosmetic tweaking in the process of evolution. Summer reading: 'coalition books' 2010-07-16T23:05:00Z Our perception of certain behaviors, personality traits, skills and, yes, looks as attractive is often attributed to natural selection that happened back then. Let's celebrate the art of the glow-down 2022-06-07T04:00:00Z “Homo sapiens is a freak,” he claims, in that it suffers “the curse of self-awareness,” which itself is “the result of catastrophe in natural selection.” ‘Where My Heart Used to Beat’: Sebastian Faulks’s latest foray into war 2016-02-02T05:00:00Z So it’s possible that breasts are the result of natural selection but they also play their part in sexual selection? A night at the vibrator museum 2012-05-20T00:00:00Z Leave it to a human to ask a question about justice, which has nothing to say about natural selection, or what Gregg calls “the great arbiter of usefulness.” Humans Know a Lot, This Author Concedes, and Most of It Is Useless 2022-08-10T04:00:00Z Not fully accepted by Darwin himself, it led the biologist and explorer Alfred Russel Wallace – acknowledged by Darwin as the co-discoverer of natural selection – to become a convert to spiritualism. Intimations of immortality 2011-01-08T00:05:59Z It had a fantastic premise: that Darwin's theory of natural selection works when applied to culture. Rewind Radio: Amanda Vickery On… Men; Wheel and Come Again: 50 Years of Jamaican Music; Darwin's Tunes – review 2012-08-11T23:05:43Z Numbers writes that the centrality of natural selection “squeezed any talk of supernatural design out of biological discourse.” From Puritans to Ken Ham: The long history of creationism in America 2014-02-22T19:00:00Z Selection is vital in natural selection because it provides the means of choosing members of a species that have what it takes over those that don’t. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z But natural selection may not always, to borrow a Doctor Johnsonism, "number the streaks on the tulip". Survival of the Beautiful by David Rothenberg - review 2012-02-10T08:59:00Z Our study does not suggest anything about whether monogamy was favored or disfavored by natural selection. The amazing way new sexual partners affect male sperm 2015-08-13T04:00:00Z Alfred Russell Wallace in 1900: the Welsh naturalist developed a theory of natural selection at the same time as Charles Darwin. Alfred Russel Wallace, the forgotten man of evolution, gets his moment 2013-01-20T00:06:58Z Bad idea: Teaching natural selection in gym class. Style Invitational Week 1095: The best/worst of the good ideas/bad ideas "It's the most democratic form of natural selection," she says. Natalina Zarzour: Sugar and spice and everything ... in between 2010-12-21T06:00:00Z Wallace is sometimes remembered as just that guy who pushed Darwin to publish his theory of natural selection by coming up with the same idea years after Darwin did. Evolution, but different: Adventures of a Darwin-doubting botanist 2014-01-12T15:00:00Z Darwin’s sexual selection theory thus failed to win the sort of victory that his theory of natural selection did. Survival of the Prettiest 2017-09-18T04:00:00Z Good idea: Teaching natural selection in science class. Style Invitational Week 1095: The best/worst of the good ideas/bad ideas How did these complicated humans – who certainly have selfish motives but also motives of sympathy, affection, resentment and envy and so forth – come to make it through the process of natural selection? Sharing is in our nature 2012-08-13T11:45:00Z Ever since, the adaptationist, “fitness first” view of sexual selection as a subset of natural selection has dominated, driving the interpretation of most significant traits. Survival of the Prettiest 2017-09-18T04:00:00Z Darwin's paper was read first and he is the one we now remember as the man who came up with the idea of natural selection. Alfred Russel Wallace, the forgotten man of evolution, gets his moment 2013-01-20T00:06:58Z Being ignorant of Darwin’s idea of natural selection is nearly as unimaginable as not knowing that the earth is round. Sex’s feel-good evolution: Charles Darwin’s erotic shocker 2014-03-09T20:00:00Z This sexual selection,as Darwin called it, this taste for beauty rather than brawn, constituted an evolutionary mechanism separate, independent, and sometimes contrary to natural selection. Survival of the Prettiest 2017-09-18T04:00:00Z The book in which he used meme for the first time is mostly about the gene as the primary unit of natural selection, or the Darwinian idea that only the strongest survive. Capitalism and socialism wed as words of the year 2012-12-05T14:42:08Z But the real attraction of the exhibition is that it offers an annual snapshot of how the world is changing – how, through the design equivalent of natural selection, today is becoming tomorrow. What are the best Designs of the Year? 2012-02-08T14:35:00Z From an evolutionary point of view, natural selection favours traits that increase our individual reproductive success. High heels and their perennial appeal: why pain seems a small price to pay 2012-07-21T14:48:19Z "The existence of 'locally adapted' populations implies that natural selection has shaped the genetic makeup of song sparrow populations across their range, enabling individuals to survive and reproduce in drastically different climatic conditions," said Carbeck. Cracking the code: Genome sequencing reveals why songbirds are larger in colder climates 2023-11-07T05:00:00Z With these assumptions in place, we can make sense of natural selection’s preference for conscious organisms. Understanding Consciousness Goes Beyond Exploring Brain Chemistry 2023-11-07T05:00:00Z "This chimpanzee behaviour requires complex cognitive abilities that help to defend or expand their territories, and would be favoured by natural selection." Chimpanzees use hilltops to conduct reconnaissance on rival groups -- study 2023-11-02T04:00:00Z "If they don't have to travel as far to find what they need because they're living with people, it makes sense that natural selection wouldn't preserve those genes," he said. New secrets about cat evolution revealed 2023-11-02T04:00:00Z Studying these birds helped Charles Darwin develop the theory of evolution by natural selection. Fruit, nectar, bugs and blood: How bat teeth and jaws evolved for a diverse dinnertime 2023-10-26T04:00:00Z The researchers suggest that revealing a genetic basis for Bergmann's rule helps us to understand how evolution, natural selection and climate have interacted throughout a species' history. Cracking the code: Genome sequencing reveals why songbirds are larger in colder climates 2023-11-07T05:00:00Z If natural selection favors genes that produce more descendants, why don’t women remain fertile their entire lives? Chimpanzees Go Through Menopause, Too 2023-10-26T04:00:00Z Why would natural selection have instilled in animals a curiosity about the very things they should be avoiding? The Evolutionary Reasons We Are Drawn to Horror Movies and Haunted Houses 2023-10-20T04:00:00Z One hypothesis to explain this difference is that natural selection would not have had the same effect on genes of Neanderthal origin in Asian and European populations. The encounter between Neanderthals and Sapiens as told by their genomes 2023-10-18T04:00:00Z "So, that's an example of a gene that was already suggested to be under natural selection, but we learned some new things about it by having these temporal samples." 200-year-old DNA helps map tiny fly's genetic course to new lands, modern times 2023-10-12T04:00:00Z He measured natural selection in all four lizard species over five consecutive time periods by catching and monitoring the survival of every lizard on the island. Long-term lizard study challenges the rules of evolutionary biology 2023-10-09T04:00:00Z It just so happens that the invisible hand of natural selection never fashioned any horses with horns, and hence the probability of riding one through an enchanted forest someday is approximately zero. We're all gonna die! How the idea of human extinction has reshaped our world 2023-10-08T04:00:00Z “And now, we only have the buildings that survived. So it’s like a natural selection process.” How are ancient Roman and Mayan buildings still standing? Scientists are unlocking their secrets 2023-10-02T04:00:00Z "Aneuploidy is an example of an extremely strong type of natural selection that's going on every generation in humans," McCoy said. Researchers studied thousands of fertility attempts hoping to improve IVF 2023-10-02T04:00:00Z "It seems that one of the ways these genetic changes evolve is by bundling together multiple genes, which are then subject to natural selection as the environment changes." Genome study reveals 30 years of Darwin's finch evolution 2023-09-29T04:00:00Z Taken together, the analysis painted a picture of how natural selection operated on the community as a whole. Long-term lizard study challenges the rules of evolutionary biology 2023-10-09T04:00:00Z My research has been reptile-focused, investigating the workings of natural selection on lizards. Cats first finagled their way into human hearts and homes thousands of years ago – here’s how 2023-08-11T04:00:00Z Darwin didn't rule out natural selection, his original term for "survival of the fittest." What is a man? Even Darwin rejected the myth of the “alpha male” 2023-07-11T04:00:00Z When a trait appears in an animal and sticks around through generations, it's a sign that the trait is advantageous for the species — that's the basic principle of natural selection. Why Do Animals Keep Evolving into Crabs? 2023-06-01T04:00:00Z Zoologists had long regarded biological forms as innate, and Charles Darwin argued that natural selection sculpts them to be adapted to their environment. Synthetic Morphology Lets Scientists Create New Life-Forms 2023-05-31T04:00:00Z To his surprise, Stroud found that the stabilizing form of natural selection -- that which maintains a species' same, average features -- was extremely rare. Long-term lizard study challenges the rules of evolutionary biology 2023-10-09T04:00:00Z In fact, only 13 genes have been changed by natural selection during the domestication process. Cats first finagled their way into human hearts and homes thousands of years ago – here’s how 2023-08-11T04:00:00Z Darwin didn't rule out natural selection, his original term for "survival of the fittest." What is a man? Even Darwin rejected the myth of the “alpha male” 2023-07-11T04:00:00Z The demands of feeding may have prompted the emergence of the tongue, but natural selection then tailored and honed it for myriad other purposes, sometimes creating “ridiculously crazy specialized systems,” Schwenk says. How the tongue shaped life on Earth 2023-05-24T04:00:00Z By learning about evolution and natural selection, Cristina could begin to see the different evolutionary reasons behind the extreme features some animals have. Fundamentals of Biology 2015-01-01T00:00:00Z In fact, natural selection varied massively through time. Long-term lizard study challenges the rules of evolutionary biology 2023-10-09T04:00:00Z Biologists refer to this fit as adaptation and it is a consequence of evolution by natural selection, which operates in every lineage of reproducing organisms. Concepts of Biology 2013-04-25T00:00:00Z No sexual selection, no natural selection — just swapping genes in productive chaos. Review | In the search for extraterrestrial life, we are the real aliens 2023-04-27T04:00:00Z In the middle of the 19th century Charles Darwin realized that rather than being the “crown of creation,” humans are simply a natural product of evolution by means of natural selection. How Far Should We Take Our Cosmic Humility? 2023-04-19T04:00:00Z In this group, natural selection has led to the evolution of different species that make use of different resources. Fundamentals of Biology 2015-01-01T00:00:00Z "The most fascinating result is that natural selection was extremely variable through time," Stroud said. Long-term lizard study challenges the rules of evolutionary biology 2023-10-09T04:00:00Z As an environment changes, natural selection causes the characteristics of the individuals in a population to track those changes. Concepts of Biology 2013-04-25T00:00:00Z Humans are not the "apex" of evolution, though we're certainly quite good at natural selection. Mother Nature can't stop evolving eyes 2023-04-16T04:00:00Z But via natural selection and an abundance of food, more aggressive males were weeded out in favor of those with milder temperaments, helping to create a more peaceful society, Hare has theorized. Elephants may be domesticating themselves 2023-04-03T04:00:00Z For example, when natural selection leads to bill-size change in medium-ground finches in the Galápagos, this does not mean that individual bills on the finches are changing. Fundamentals of Biology 2015-01-01T00:00:00Z Dr. Ayala brought the training of a geneticist to the study of evolution, making important findings about the emergence and extinction of species in response to natural selection, mutation and other natural processes. Francisco Ayala, Biologist and Defender of Evolution, Dies at 88 2023-03-10T05:00:00Z The theory of evolution by natural selection describes a mechanism for species change over time. Concepts of Biology 2013-04-25T00:00:00Z This advantage would allow the worms to pass on their genes, allowing for natural selection to continue favoring genes that produce photoreceptor cells and benefit its survival. Mother Nature can't stop evolving eyes 2023-04-16T04:00:00Z “It’s the first evidence of natural selection because of a pathogen in the Americas.” Indigenous groups in the Amazon evolved resistance to deadly Chagas 2023-03-07T05:00:00Z The C4 and CAM pathways are two adaptations—beneficial features arising by natural selection—that allow certain species to minimize photorespiration. Fundamentals of Biology 2015-01-01T00:00:00Z So by testing which libraries had the best solubility and structure, the researchers could conclude that proteins were evolving and driving natural selection before even forming living things. Did evolution occur before life even existed? New study sheds light on how amino acids "evolved" 2023-03-01T05:00:00Z Demonstrations of evolution by natural selection can be time consuming. Concepts of Biology 2013-04-25T00:00:00Z Because rats reproduce so prolifically, the invisible hand of natural selection becomes more noticeable. Is There an Ethical Way to Kill Rats? Should We Even Ask? 2023-02-27T05:00:00Z As a result of this natural selection, the proportion of people carrying that gene variant jumped following the Black Death. Indigenous groups in the Amazon evolved resistance to deadly Chagas 2023-03-07T05:00:00Z These developments, as well as the results from embryology and paleontology, were synthesized in Charles Darwin’s theory of evolution by natural selection. Fundamentals of Biology 2015-01-01T00:00:00Z "You could have evolution before you had biology, you could have natural selection for the chemicals that are useful for life even before there was DNA." Did evolution occur before life even existed? New study sheds light on how amino acids "evolved" 2023-03-01T05:00:00Z The four most important evolutionary forces, which will disrupt the equilibrium, are natural selection, mutation, genetic drift, and migration into or out of a population. Concepts of Biology 2013-04-25T00:00:00Z The argument for cooperation is that trees in a healthy forest survive better than trees in a sickly one, but such instances of group natural selection are rare in the wild, Flinn says. Do Trees Really Support Each Other through a Network of Fungi? 2023-02-13T05:00:00Z In these genomes, they looked for patterns suggesting certain genes had been influenced by natural selection. Indigenous groups in the Amazon evolved resistance to deadly Chagas 2023-03-07T05:00:00Z Charles Darwin is best known for his discovery of natural selection. In the mid-nineteenth century, the actual mechanism for evolution was independently conceived of and described by two naturalists: Charles Darwin and Alfred Russel Wallace. Fundamentals of Biology 2015-01-01T00:00:00Z "Ultimately, it's having a lot of virus circulating, mutating, and being subject to natural selection that is the biggest issue," Gregory said. COVID is spreading from humans to animals and back again 2023-01-24T05:00:00Z If natural selection acts against the allele, it will be removed from the population at a low rate leading to a frequency that results from a balance between selection and mutation. Concepts of Biology 2013-04-25T00:00:00Z They just know that natural selection — Darwinian evolution — is favoring the mutations for some reason. Lab-leak fears are putting virologists under scrutiny 2023-01-18T05:00:00Z Life is probably going to always be affected by natural selection, it's going to have to metabolize, it's gonna have to reproduce. The Medea Hypothesis: Does life on Earth sow the seeds of its own extinction? 2022-12-19T05:00:00Z The following year Darwin’s book, On the Origin of Species, was published. His book outlined in considerable detail his arguments for gradual changes and adaptive survival by natural selection. Fundamentals of Biology 2015-01-01T00:00:00Z Its persistence suggests it continued to be favored by natural selection until recently—probably because the plague was endemic in Europe and Asia until the early 19th century. Science’s 2022 Breakthrough of the Year: A telescope’s golden eye sees the universe anew 2022-12-14T05:00:00Z Darwin identified a special case of natural selection that he called sexual selection. Concepts of Biology 2013-04-25T00:00:00Z Life spans get extended, too, with natural selection favoring additional years of productive foraging to support children and grandchildren. New Human Metabolism Research Upends Conventional Wisdom about How We Burn Calories 2022-12-13T05:00:00Z And once the animal virus is in a human, natural selection will work in favour of mutations that make the virus successful. How Viruses Hop from Wild Animals to Humans 2022-11-21T05:00:00Z The second is called “controlled natural selection,” which is essentially natural selection in a controlled environment. Fundamentals of Biology 2015-01-01T00:00:00Z The fast spread of this protective gene variant in Europe during the century after the Black Death is the strongest example yet of natural selection on the human genome. Science’s 2022 Breakthrough of the Year: A telescope’s golden eye sees the universe anew 2022-12-14T05:00:00Z In general, it is thought that sexual selection can proceed to a point at which natural selection against a character’s further enhancement prevents its further evolution because it negatively impacts the male’s ability to survive. Concepts of Biology 2013-04-25T00:00:00Z The brown color of the females’ feathers evolved through natural selection where the fittest survive; in this case, the ones that are camouflaged from predators. Perspective | Narwhals, ruffs and other animals that defy gender stereotypes 2022-11-14T05:00:00Z Most experts believe that organisms whose members sacrifice their own interests for the community rarely evolve, a result of the powerful force of natural selection. Your Tuesday Briefing: The U.S. Midterms Loom 2022-11-07T05:00:00Z There are also “selection experiments,” which is a third approach and these are conducted in order to determine the “strength of natural selection in the wild.” Fundamentals of Biology 2015-01-01T00:00:00Z Most experts, Dr. Flinn wrote, believe that groups of organisms whose members sacrifice their own interests on behalf of the community rarely evolve, a result of the powerful force of natural selection among competing individuals. Are Trees Talking Underground? For Scientists, It’s In Dispute. 2022-11-07T05:00:00Z Typically, environmental conditions, such as climate, resources, predators, and competitors, for the two populations will differ causing natural selection to favor divergent adaptations in each group. Concepts of Biology 2013-04-25T00:00:00Z And so natural selection would have endowed organisms with means that help them solve conflicts in their favor: fangs, antlers, neurotoxic venoms. Intuitions about justice are a consistent part of human nature across cultures and millennia 2022-11-02T04:00:00Z Most important scientific claims, from the causes of climate change to the role of evolution by natural selection, have at least a handful of contrarians. To Fight Misinformation, We Need to Teach That Science Is Dynamic 2022-10-26T04:00:00Z A bell curve representing the original population and one representing the population after natural selection only slightly overlap. Fundamentals of Biology 2015-01-01T00:00:00Z It is among the fastest examples of natural selection ever detected in humans, says population geneticist Monty Slatkin of the University of California, Berkeley, who is not part of the study. Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z The last such theory, proposed by Lamarck in the nineteenth century, was replaced by the theory of natural selection. Concepts of Biology 2013-04-25T00:00:00Z When the Black Death struck Europe in 1348, the bacterial infection killed large swaths of people across the continent, driving the strongest pulse of natural selection yet measured in humans, the new study found. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z And she and others stress that multicellular larger organisms must be sensitive to natural selection. Odd cave bacterium forms a multicellular ‘body,’ like plants and animals 2022-10-18T04:00:00Z After natural selection, the bell curve splits into two peaks, indicating gray and Himalayan coat color have become more common than the intermediate white coat color. Fundamentals of Biology 2015-01-01T00:00:00Z “The implications of the potential speed and power of natural selection in immune genes are wild.” Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z Evolution by natural selection arises from three conditions: individuals within a species vary, some of those variations are heritable, and organisms have more offspring than resources can support. Concepts of Biology 2013-04-25T00:00:00Z It can be challenging to determine if a common mutation came to be because of genetic drift or natural selection. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z While the ancestor to modern crested penguins raised two chicks, Dr. Davis suspected that food scarcity drove natural selection in today’s species to reduce their brood size to one. For These Isolated Penguins, Two Eggs Are Not Better Than One 2022-10-12T04:00:00Z Darwin used artificial selection as a springboard to introduce and support the theory of natural selection. Fundamentals of Biology 2015-01-01T00:00:00Z The variant’s high proportion suggests natural selection continued to favor it until recently, presumably because the plague remained endemic in Europe and Asia into the 19th century. Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z Describe natural selection and give an example of natural selection at work in a population. Concepts of Biology 2013-04-25T00:00:00Z One way to tell the difference is speed: Under extreme conditions, natural selection can make a mutation spread far faster than genetic drift can. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z Each of these anatomical features arose through natural selection over millions of years. How a Chinese fish fossil discovery rewrites the history of life's evolution 2022-10-01T04:00:00Z Some mutations are unfavorable or harmful and are quickly eliminated from the population by natural selection. Fundamentals of Biology 2015-01-01T00:00:00Z The findings also indicate the Black Death caused a dramatic jump in the proportion of people carrying the protective variant; it is the strongest surge of natural selection on the human genome documented so far. Gene that helped people survive Black Death may have come back to haunt us 2022-10-19T04:00:00Z The incorrect use of an antibiotic results in the natural selection of resistant forms of bacteria. Concepts of Biology 2013-04-25T00:00:00Z To compare natural selection and genetic drift, Dr. Berreiro and his colleagues went back to the DNA of the Londoners for another look. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z The term “Darwinian beekeeping” is a nod to Charles Darwin’s principle that natural selection over time gives species the ability to survive and reproduce. A once-obscure type of beekeeping could help save colonies 2022-09-21T04:00:00Z But natural selection can only, as its name implies, select—it cannot create. Fundamentals of Biology 2015-01-01T00:00:00Z But they soon concluded that those features could easily have resulted from natural selection. NIH advisers urge tighter oversight of experiments on deadly viruses 2022-09-21T04:00:00Z In sum, the modern synthesis describes how evolutionary pressures, such as natural selection, can affect a population’s genetic makeup, and, in turn, how this can result in the gradual evolution of populations and species. Concepts of Biology 2013-04-25T00:00:00Z But 35 of the mutations in immune genes spread far faster than the neutral ones — so fast that only natural selection could account for their success. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z This appears to have happened early in the evolution of flowering plants, but most of the duplicated genes have been stripped out after tens of millions of years of natural selection. Cracking the Case of the Giant Fern Genome 2022-09-12T04:00:00Z Overlaying this wide bell curve is a narrow one that represents the clutch size after natural selection, which is much less variable. Fundamentals of Biology 2015-01-01T00:00:00Z In a recent paper, he used math to demonstrate that “aging can be favored by natural selection.” The long and gruesome history of people trying to live forever 2022-05-01T04:00:00Z Change in the genetic variation for beaks in response to natural selection based on specific food sources in each new habitat led to evolution of a different beak suited to the specific food source. Concepts of Biology 2013-04-25T00:00:00Z The fact that they underwent such strong natural selection most likely means they are important in the fight against diseases — and perhaps not just the plague. How the ‘Black Death’ Left Its Genetic Mark on Future Generations 2022-10-19T04:00:00Z He calls it the social bet-hedging hypothesis, and it may explain why natural selection has favored relationships that don't directly maximize an individual's genetic legacy, i.e., offspring. Scientists forced unfamiliar vampire bats to spend time together, and the bats soon became friends 2022-08-28T04:00:00Z All life on earth has evolved from a common, primitive organism through the process of natural selection. Chemistry 2019-02-14T00:00:00Z Thus, evolution by natural selection explains both the unity and diversity of life. Biology for AP Courses 2022-06-09T00:00:00Z Therefore, an individual cannot evolve or adapt through natural selection. Concepts of Biology 2013-04-25T00:00:00Z Plate tectonics is a concept as basic to geology as evolution by natural selection is to biology or gravity is to understanding the orbits of planets. Astronomy 2016-10-13T00:00:00Z Darwin was a British naturalist who, in his 1859 work On the Origin of Species, made the case that species develop and evolve through natural selection, not through divine intervention. U.S. History 2014-12-30T00:00:00Z Other researchers have argued that if a process as fundamental as photosynthesis could be improved upon, then surely natural selection would have done so by now. Scientists Boost Crop Performance by Engineering a Better Leaf 2022-08-18T04:00:00Z In sum, the modern synthesis describes how evolutionary processes, such as natural selection, can affect a population’s genetic makeup, and, in turn, how this can result in the gradual evolution of populations and species. Biology for AP Courses 2022-06-09T00:00:00Z For example, when natural selection leads to bill-size change in medium ground finches in the Galápagos, this does not mean that individual bills on the finches are changing. Concepts of Biology 2013-04-25T00:00:00Z Many bear the hallmarks of strong natural selection for bipedalism, the authors conclude. Genes reveal how our pelvis evolved for upright walking 2022-08-16T04:00:00Z Charles Darwin had first published his theory of natural selection in 1859, and by the 1920s, many standard textbooks contained information about Darwin’s theory of evolution. U.S. History 2014-12-30T00:00:00Z In most cases, mutations are harmful to the virus' ability to reproduce, and thus often eliminated in the process of natural selection. Why BA.5 became the dominant COVID variant 2022-08-10T04:00:00Z However, if a phenotype is favored by natural selection, allele frequencies can change. Biology for AP Courses 2022-06-09T00:00:00Z However, in all populations, mutation, natural selection, genetic drift, and migration act to change allele frequencies. Concepts of Biology 2013-04-25T00:00:00Z That uniformity, the researchers say, is a sign that natural selection put—and continues to put—intense pressure on the ilium to develop in a highly specific way. Genes reveal how our pelvis evolved for upright walking 2022-08-16T04:00:00Z Evolutionary researchers said it ran counter to the laws of natural selection. James Lovelock, creator of Gaia theory of ‘living’ Earth, dies at 103 2022-07-28T04:00:00Z The team proposes that natural selection for lactase tolerance was turbocharged during such periods, when lactose-intolerant individuals would have been more likely to die than people who lacked the suddenly beneficial gene variation. How Humans’ Ability to Digest Milk Evolved from Famine and Disease 2022-07-28T04:00:00Z Both the bottleneck effect and the founder effect reduce genetic variation within a population—and genetic variation is the basis for natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Evolutionary reduction is a process by which natural selection reduces the size of a structure that is no longer favorable in a particular environment. Concepts of Biology 2013-04-25T00:00:00Z Future work comparing human embryos with other primate embryos—rather than mouse models—would allow for an even better look at how natural selection reshaped the human pelvis, he adds. Genes reveal how our pelvis evolved for upright walking 2022-08-16T04:00:00Z Darwin worked out his theory of evolution by natural selection soon after reading Malthus, but did not publish his ideas for another 20 years. Miller & Levine Biology 2018-01-01T00:00:00Z The variant that most people of European ancestry carry is one of the strongest examples of natural selection on the human genome. How Humans’ Ability to Digest Milk Evolved from Famine and Disease 2022-07-28T04:00:00Z In other words, natural selection favors the most adaptive variation for a given environment. Biology for AP Courses 2022-06-09T00:00:00Z The theory of evolution by natural selection describes a mechanism for how species can change over time. Environmental Biology 2018-09-06T00:00:00Z He proposed natural selection—which operated on organisms living under environmental conditions that posed challenges to survival—was the mechanism driving the process of evolution forward. An Introduction to Geology 2017-01-01T00:00:00Z This data indicates that Earth is about 4.5 billion years old, old enough for evolution by natural selection to have taken place. Miller & Levine Biology 2018-01-01T00:00:00Z And lactose tolerance showed no clear health or fertility benefits, which might drive natural selection. How Humans’ Ability to Digest Milk Evolved from Famine and Disease 2022-07-28T04:00:00Z If the fit phenotypes are evolving in a stable environment, natural selection results in stabilizing selection, resulting in an overall decrease in the population’s variation. Biology for AP Courses 2022-06-09T00:00:00Z Charles Darwin, in developing his theory of natural selection, was influenced by the English clergyman Thomas Malthus. Environmental Biology 2018-09-06T00:00:00Z Darwin, C. On the origin of species by means of natural selection, or, the preservation of favoured races in the struggle for life. An Introduction to Geology 2017-01-01T00:00:00Z Recently biologists have designed experiments to study natural selection in the wild. Miller & Levine Biology 2018-01-01T00:00:00Z "One of the takeaways is that animals, including roaches, have adaptations that they evolve in terms of natural selection," Dr. Schal said. Cockroaches are evolving to have a sugar-free diet, posing problems for pest control 2022-07-03T04:00:00Z This causes the average tail length for males within the population to decrease over time due to natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Predation and predator avoidance are strong influenced by natural selection. Environmental Biology 2018-09-06T00:00:00Z The theory of evolution by natural selection is another example. An Introduction to Geology 2017-01-01T00:00:00Z Second, if the beak differences were involved in natural selection, birds with different beak sizes and shapes should show differential survival and reproduction. Miller & Levine Biology 2018-01-01T00:00:00Z The researchers also traced natural selection in wolf populations over time, identifying multiple genetic variants that rapidly spread through ancient wolves, likely because they conferred a significant survival advantage. A Canine Companion So Nice It (Maybe) Evolved Twice 2022-06-29T04:00:00Z But natural selection cannot produce the perfect organism. Biology for AP Courses 2022-06-09T00:00:00Z The competitive exclusion principle works because if there is competition between two species for the same resources, then natural selection will favor traits that lessen reliance on the shared resource, thus reducing competition. Environmental Biology 2018-09-06T00:00:00Z As the rabbits developed stronger innate immunity, Dr. Read and his colleagues suspect, natural selection, in turn, favored viruses that could overcome this defense. Think All Viruses Get Milder with Time? Not This Rabbit-Killer 2022-06-20T04:00:00Z Some behaviors are also influenced by inherited genes, and can therefore evolve in response to natural selection. Miller & Levine Biology 2018-01-01T00:00:00Z “It is a very dramatic episode of natural selection,” Dr. Bergstrom said. A Canine Companion So Nice It (Maybe) Evolved Twice 2022-06-29T04:00:00Z It is the net effect of these alleles, or the organism’s fitness, upon which natural selection can act. Biology for AP Courses 2022-06-09T00:00:00Z The development of antibiotic resistant bacteria is an example of evolution through natural selection and it has been directly observed by scientists. Environmental Biology 2018-09-06T00:00:00Z Darwin used the term "natural selection" to describe the ability of genetically lucky organisms to survive long enough to procreate under environmental conditions that kill others. A microscopic arms race is happening between sperm 2022-06-19T04:00:00Z Limiting factors produce the pressures of natural selection at the heart of Charles Darwin’s evolutionary theory. Miller & Levine Biology 2018-01-01T00:00:00Z The scientists also found that certain genetic variants affecting wolves’ olfactory receptor genes became much more common in wolf populations over time, suggesting that the animals’ sense of smell also benefited from natural selection. A Canine Companion So Nice It (Maybe) Evolved Twice 2022-06-29T04:00:00Z Because natural selection works in a random manner like mutations. Biology for AP Courses 2022-06-09T00:00:00Z In sum, we can define natural selection as a process the causes beneficial traits to become more common in a population over time, causing the population to evolve. Environmental Biology 2018-09-06T00:00:00Z Brilliant as he was, he never realized that natural selection and sexual selection aren't quite enough to explain evolution. A microscopic arms race is happening between sperm 2022-06-19T04:00:00Z He hypothesized that natural selection shaped the beaks of different populations as they adapted to eat different foods. Miller & Levine Biology 2018-01-01T00:00:00Z “In reality, it was likely a combination of natural selection ... for a particular dietary preference and sexual selection in that lineage that drove the evolution of modern giraffe necks and limbs,” he says. Ancient Giraffe Relative Was Evolution’s Headbutting Champion, Perhaps Besting Dinosaurs 2022-06-02T04:00:00Z Because natural selection is limited to sexual dimorphism. Biology for AP Courses 2022-06-09T00:00:00Z The following year Darwin’s book, On the Origin of Species, was published, which outlined in considerable detail his arguments for evolution by natural selection. Environmental Biology 2018-09-06T00:00:00Z Charles Darwin assumed the driver of natural selection was food, as animals with longer necks could reach higher trees and have their own private food supply with little competition from other species. This ancient giraffe relative head-butted rivals with an ‘amazing sexual weapon’ 2022-06-01T04:00:00Z If the finch population did not have enough variation for natural selection to operate, they would not have been able to adapt and change. Miller & Levine Biology 2018-01-01T00:00:00Z "We show that these rates of contemporary adaptive evolution can affect population dynamics and hence that natural selection has the potential to partly mitigate effects of current environmental change," the scientists continued. Evolution may be occurring far faster than previously thought, study finds 2022-05-31T04:00:00Z On your histogram, also indicate what type of natural selection is occurring here. Biology for AP Courses 2022-06-09T00:00:00Z During the course of natural selection, organisms adapt to the ecological niches in which they live and learn to predict the likely outcomes of their actions in those niches. How the Brain ‘Constructs’ the Outside World 2022-05-31T04:00:00Z Researchers can’t say whether natural selection or sexual selection made the giraffe such an exotic looking beast. This ancient giraffe relative head-butted rivals with an ‘amazing sexual weapon’ 2022-06-01T04:00:00Z Mutations are important because they provide a regular source of variation for natural selection to operate on the population. Miller & Levine Biology 2018-01-01T00:00:00Z “Mimicry is one of the best examples of natural selection in action.” Bats buzz like hornets to scare away predators 2022-05-09T04:00:00Z No, because the allele frequencies are changing randomly, suggesting that genetic drift is occurring, not natural selection. Biology for AP Courses 2022-06-09T00:00:00Z But when a mutation offers some advantage, the process of natural selection will favor it. Virus mutations aren’t slowing down. New omicron subvariant proves it. 2022-05-01T04:00:00Z Because viruses replicate by the billions daily, they reveal the processes of random genetic variation and natural selection with all the immediacy of a time-lapse film. Opinion | As covid evolves, China’s obstinance grows — at huge economic cost 2022-04-29T04:00:00Z Natural Selection Darwin named his mechanism for evolution natural selection. Miller & Levine Biology 2018-01-01T00:00:00Z They also often cite Charles Darwin’s 1872 book The Expression of the Emotions in Man and Animals to support the claim that universal expressions evolved by natural selection. Darwin Was Wrong: Your Facial Expressions Do Not Reveal Your Emotions 2022-04-27T04:00:00Z Heterozygote advantage is a condition in which heterozygotes are favored by natural selection. Biology for AP Courses 2022-06-09T00:00:00Z As Salon has reported before, this is not always a bad thing, as natural selection tends to favor viruses that are highly transmissible and not those that are necessarily deadliest. What will COVID-19 look like in 2100? Scientists predict three possible scenarios 2022-04-05T04:00:00Z New ideas are like genetic mutations, and the open exchange — the testing and probing — of new ideas is analogous to natural selection. Opinion | As covid evolves, China’s obstinance grows — at huge economic cost 2022-04-29T04:00:00Z The idea that natural selection and adaptation can produce new species explains both the unity and the diversity of life. Miller & Levine Biology 2018-01-01T00:00:00Z Variation is not error; it is a necessary ingredient for natural selection by the environment. Darwin Was Wrong: Your Facial Expressions Do Not Reveal Your Emotions 2022-04-27T04:00:00Z Which type of evolution is likely occurring here and is the allele selected for, neutral, or selected against by natural selection? Biology for AP Courses 2022-06-09T00:00:00Z Because it’s easier to encode instructions for building simple, symmetrical structures, nature winds up with a disproportionate number of these simpler instruction sets to choose from when it comes to natural selection. Life’s Preference for Symmetry Is Like ‘A New Law of Nature’ 2022-03-24T04:00:00Z And it’s going on in birds: Songbirds in Europe and owls in Argentina show evidence of natural selection in genes associated with cognition. Urban Evolution: How Species Adapt to Survive in Cities 2022-03-25T04:00:00Z According to the principle of common descent, all species—living and extinct—are united by descent from ancient common ancestors, and they exhibit diversity due to natural selection and adaptation. Miller & Levine Biology 2018-01-01T00:00:00Z Essentialism likewise appears to lure designers of emotion AI systems to follow Darwin down this comfortable path, with its assumption that emotions evolved via natural selection to serve important functions. Darwin Was Wrong: Your Facial Expressions Do Not Reveal Your Emotions 2022-04-27T04:00:00Z The imprudent and excessive use of antibiotics has resulted in the natural selection of resistant forms of bacteria. Biology for AP Courses 2022-06-09T00:00:00Z Biologists aren’t sure — there’s no reason based in natural selection for symmetry’s prevalence in such varied forms of life and their building blocks. Life’s Preference for Symmetry Is Like ‘A New Law of Nature’ 2022-03-24T04:00:00Z Munshi-South’s lab has evidence that natural selection is changing the skulls of the rats such that they have longer noses and shorter sets of teeth. Urban Evolution: How Species Adapt to Survive in Cities 2022-03-25T04:00:00Z Therefore, natural selection does not fully eliminate them. Miller & Levine Biology 2018-01-01T00:00:00Z But if you actually read Expression, you’ll find that Darwin barely mentioned natural selection. Darwin Was Wrong: Your Facial Expressions Do Not Reveal Your Emotions 2022-04-27T04:00:00Z Like most other organisms, plants have the ability to detect and respond to environmental change; this ability is an adaptation favored by natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Evolution favors simple genetic codes over complex ones — a principle called "simplicity bias" drawn from theoretical computer science — before natural selection even comes into play. The weird reason symmetry abounds in nature may have to do with our genes striving for efficiency 2022-03-20T04:00:00Z And after sequencing more than 2,000 clover genomes and analyzing the urban-rural differences, the researchers showed that natural selection truly is at work. Urban Evolution: How Species Adapt to Survive in Cities 2022-03-25T04:00:00Z Darwin did not think it was possible to observe natural selection in nature because evolutionary change happens very slowly. Miller & Levine Biology 2018-01-01T00:00:00Z Researchers argue this lack of change may represent natural selection on overdrive. Fossil Reveals Secrets of One of Nature’s Most Mysterious Reptiles 2022-03-06T05:00:00Z The direction of natural selection shifted so that plants with small leaves were selected because those populations were able to conserve water to survive the new environmental conditions. Biology for AP Courses 2022-06-09T00:00:00Z The approach taken in this study does not imply that natural selection has no role, but evolution can not account for all of these. The weird reason symmetry abounds in nature may have to do with our genes striving for efficiency 2022-03-20T04:00:00Z In a famous 1955 paper, British geneticist Bernard Kettlewell presented evidence that this was a case of natural selection in which darkness helped the moths evade bird predation as they rested on sooty tree trunks. Urban Evolution: How Species Adapt to Survive in Cities 2022-03-25T04:00:00Z According to the idea of natural selection, populations tend to grow faster than the food supply and so must compete for food. World History: Patterns of Interaction 2012-01-01T00:00:00Z Is it about natural selection or the subtle messages that are passed on over decades about what authority should look and sound like? Opinion | What Ketanji Brown Jackson’s guidance counselor missed 2022-02-28T05:00:00Z It is also important to understand that the variation that natural selection works on is already in a population and does not arise in response to an environmental change. Biology for AP Courses 2022-06-09T00:00:00Z The students suggested these factors: natural selection, morphological mutations, punctuated equilibrium and allopatric speciation. Perspective | New Jersey’s governor blocked the growth of its best charter schools. Why? 2022-02-20T05:00:00Z This logic is fundamentally flawed because complexity does not license dismissal of the overwhelming evidence for natural selection and, by itself, does not mandate any design, intelligent or otherwise. The Lab-Leak Hypothesis Made It Harder for Scientists to Seek the Truth 2022-02-18T05:00:00Z Darwin’s idea of change through natural selection came to be called the theory of evolution. World History: Patterns of Interaction 2012-01-01T00:00:00Z Neo-Darwinism refers to any branch of science which combines Charles Darwin's theory of evolution by natural selection with Gregor Mendel's discipline of genetics. Biologists surprised to discover that some "random" mutations may not be so random 2022-02-05T05:00:00Z Evolution in response to natural selection based on specific food sources in each new habitat led to evolution of a different beak suited to the specific food source. Biology for AP Courses 2022-06-09T00:00:00Z It is the pressure of natural selection, penalizing the host when its genome gets too big, that maintains the genome at a certain size in most species. Junk DNA Deforms Salamander Bodies 2022-02-02T05:00:00Z This is not always a bad thing, as natural selection tends to favor viruses that are highly transmissible and not those that are necessarily deadliest. "Son of omicron" variant worries public health officials amid new wave of COVID-19 infections 2022-01-26T05:00:00Z Free economic competition, Spencer argued, was natural selection in action. World History: Patterns of Interaction 2012-01-01T00:00:00Z Geneticists have long known that genes with important functions are kept intact by natural selection, while genes without a vital job tend to decay and sometimes disappear completely as species evolve. Our evolutionary love of sugar: Anthropologist explains why we're programmed to crave sweets 2022-01-16T05:00:00Z How is artificial selection both similar to and different from Darwin’s conception of natural selection? Biology for AP Courses 2022-06-09T00:00:00Z Once people gain immunity to omicron, natural selection may favor mutations that produce a new variant that can evade that immunity. Omicron variant might help defend against delta, lab study suggests 2021-12-28T05:00:00Z He warned them that this would not be easy: It would be hard to tease apart the effects of human culture from those of natural selection. E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92 2021-12-27T05:00:00Z That arose through evolutionary processes such as natural selection, he says, because it would have carried adaptive benefits. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z If responses to a particular sensation are consistently advantageous across generations, natural selection fixes them in place and they become instincts. Our evolutionary love of sugar: Anthropologist explains why we're programmed to crave sweets 2022-01-16T05:00:00Z Both artificial selection and natural selection are the differential reproduction of individual organisms with favored traits. Biology for AP Courses 2022-06-09T00:00:00Z It's an extraordinary example of natural selection for a genetic trait, and the reasons for its spread remain a mystery. Ancient mass-migration linked to British genes 2021-12-22T05:00:00Z Dr. Wilson found it hard to explain ant behavior in terms of natural selection, which alters a species as some individuals have more offspring than others. E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92 2021-12-27T05:00:00Z However, he argues that the human perception of numbers is typically much more sophisticated, and can’t have arisen through a process such as natural selection. How Did Neanderthals and Other Ancient Humans Learn to Count? 2021-12-23T05:00:00Z Sugar isn't tricking you; you are responding precisely as programmed by natural selection. Our evolutionary love of sugar: Anthropologist explains why we're programmed to crave sweets 2022-01-16T05:00:00Z Assuming that the drought continues and the population of birds in the community stays isolated, what predictions for the population can you make under the influence of natural selection? Biology for AP Courses 2022-06-09T00:00:00Z Charles Darwin probably never imagined that natural selection unfolds in our bone marrow. Dangerous blood condition may guard against Alzheimer’s disease 2021-12-13T05:00:00Z He then explored a huge range of behaviors, showing how they might be the product of natural selection. E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92 2021-12-27T05:00:00Z But few of these early changes seemed to have any effect on the behaviour of SARS-CoV-2, or show signs of being favoured under natural selection. COVID Variants Hint at How the Virus Will Evolve 2021-12-09T05:00:00Z The difference for people with H.I.V., or another immunosuppressing condition, is that because the virus stays in their systems so much longer, the natural selection process has more time to favor mutations that evade immunity. The Variant Hunters: Inside South Africa’s Effort to Stanch Dangerous Mutations 2021-12-04T05:00:00Z The allele frequency within a given population can change depending on environmental factors; therefore, certain alleles become more widespread than others during the process of natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Through natural selection, random mutations accumulate in any virus. Will omicron – the new coronavirus variant of concern – be more contagious than delta? 2021-12-03T05:00:00Z As an expert on insects, Dr. Wilson studied the evolution of behavior, exploring how natural selection and other forces could produce something as extraordinarily complex as an ant colony. E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92 2021-12-27T05:00:00Z Because the climate modes align conditions for seed germination and flowering, natural selection could favor individuals that flower in sync with those modes. Why are trees dropping so many nuts? Climate may drive erratic ‘masting’ 2021-11-23T05:00:00Z Hence, mutations aren't always a bad thing; in most cases, mutations are harmful to the virus' ability to reproduce, and thus often eliminated in the process of natural selection. Why the coronavirus is unlikely to mutate into something deadlier 2021-11-09T05:00:00Z Only those differences encoded in an individual’s genes, however, can be passed to its offspring and, thus, be a target of natural selection. Biology for AP Courses 2022-06-09T00:00:00Z As SARS-CoV-2 continues to spread among humans, natural selection and adaptation will result in more variants that could plausibly be more transmissible than delta. Will omicron – the new coronavirus variant of concern – be more contagious than delta? 2021-12-03T05:00:00Z Other evolutionary biologists attacked him for reversing his views on natural selection late in his career. E.O. Wilson, a Pioneer of Evolutionary Biology, Dies at 92 2021-12-27T05:00:00Z Ask someone who unearthed the theory of natural selection and the answer is unlikely to be Alfred Russel Wallace. Forgotten discoverer of natural selection honoured by Bill Bailey 2021-11-06T04:00:00Z Mathematical modeling showed this change was almost certainly because of natural selection and not a random fluke. Tuskless Elephants Escape Poachers, but May Evolve New Problems 2021-10-21T04:00:00Z If the fit phenotypes are those that are similar, natural selection will result in stabilizing selection, and an overall decrease in the population’s variation. Biology for AP Courses 2022-06-09T00:00:00Z With colleagues, he set out to understand how the pressure of the ivory trade had tipped the scale of natural selection. Why no tusks? Poaching tips scales of elephant evolution 2021-10-21T04:00:00Z Critics of evolution often argue that life, rather than gradually changing over the years through natural selection, was actually created by a so-called "intelligent designer." The human neck is a mistake of evolution 2021-10-12T04:00:00Z They are, like all animals, natural creatures whose larger species change due to natural selection. Climate change is going to make life harder for dogs and cats 2021-10-11T04:00:00Z They also searched for places in the genome showing the signature of recent natural selection without the random DNA reshuffling that happens over time. Tuskless Elephants Escape Poachers, but May Evolve New Problems 2021-10-21T04:00:00Z Explain why there is no perfect organism despite natural selection. Biology for AP Courses 2022-06-09T00:00:00Z “When we think about natural selection, we think about it happening over hundreds, or thousands, of years,” said Samuel Wasser, a conservation biologist at the University of Washington, who was not involved in the research. Why no tusks? Poaching tips scales of elephant evolution 2021-10-21T04:00:00Z All that dues-paying is seen as natural selection; you put up with your horrible boss to prove that you’re tough, you have what it takes. With the IATSE strike vote, film and TV crews are saying what is on a lot of other workers' minds 2021-10-07T04:00:00Z Many mutations get eliminated in the process of natural selection, Amini said, but sometimes mutants get a competitive advantage— like delta. How the once-feared mu variant all but disappeared 2021-10-06T04:00:00Z But how mutations, random chance and natural selection produce variants is a complicated process, and there has been a lot of confusion about how and why new variants emerge. Massive numbers of new COVID-19 infections, not vaccines, are the main driver of new variants 2021-09-20T04:00:00Z Because natural selection works on a geographic level. Biology for AP Courses 2022-06-09T00:00:00Z While all models of evolution required very long times, natural selection required much longer times than any guided selection process. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z And such development is far from over: modern humans continue to adapt to our changing world, even if we often feel that we have somehow bested natural selection. The Story of Us 2021-08-31T04:00:00Z A turning point did not occur until the 1940s, when scientists in the United States had reached a consensus that natural selection drove evolution and explained the rise of human beings. Science quietly wins one of the right’s longstanding culture wars 2021-08-24T04:00:00Z So, natural selection will favor mutations that can exploit all these unvaccinated people and make the coronavirus more transmissible. Massive numbers of new COVID-19 infections, not vaccines, are the main driver of new variants 2021-09-20T04:00:00Z A scientist is studying the genetics of a population of plants that she suspects is undergoing natural selection. Biology for AP Courses 2022-06-09T00:00:00Z But he could equally well have been describing his contemporary Charles Darwin's experience with his theory of evolution by natural selection. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z “However, the counterargument is that natural selection is a hell of a problem solver and the virus is only beginning to experience real pressure to evade immunity.” New SARS-CoV-2 variants have changed the pandemic. What will the virus do next? 2021-08-19T04:00:00Z “This is just a process of natural selection and selecting viruses that are more contagious. All viruses want to do is reproduce themselves. The ones that do become the dominant virus,” he said. Here’s what we know about the delta-plus variant 2021-08-03T04:00:00Z It is theoretically possible that in this situation, natural selection will lead to variants that can infect and cause serious disease in vaccinated people. Massive numbers of new COVID-19 infections, not vaccines, are the main driver of new variants 2021-09-20T04:00:00Z Does this provide evidence of natural selection in this population? Biology for AP Courses 2022-06-09T00:00:00Z The work of Lyell and other geologists gave him the luxury of assuming that sufficient time existed for natural selection to do its work. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z “Your mind is a compilation of a whole bunch of mechanisms produced by natural selection,” Dr. Fessler told me over the phone. Ever Feel Your Skin Crawling? Maybe You Can Thank Evolution. 2021-07-27T04:00:00Z “Those people might lose their jobs because of natural selection,” Mr. Fleiss said. Return to Office Hits a Snag: Young Resisters 2021-07-26T04:00:00Z In fact, he argues, centuries ago she most likely would have been killed off by natural selection. A Personal History of the C-Section 2021-07-21T04:00:00Z What would most likely happen to the frequencies of A and a if heterozygous individuals were favored by natural selection? Biology for AP Courses 2022-06-09T00:00:00Z This was why natural selection aroused such opposition even while evolution was accepted. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z Like other ecological interactions, cooperation must evolve by natural selection, in which traits increase in frequency because individuals who have them produce more offspring and pass on the traits. The Idea That Trees Talk to Cooperate Is Misleading 2021-07-19T04:00:00Z The process of natural selection shaped our bodies and capacities. Race, Evolution and the Science of Human Origins 2021-07-05T04:00:00Z With fewer hosts to infect, natural selection would favor parasite individuals that spread faster. Study: Parasite devastated Chesapeake Bay oysters in 1980s 2021-06-26T04:00:00Z The excessive use of antibiotics has resulted in the natural selection of resistant forms of bacteria. Biology for AP Courses 2022-06-09T00:00:00Z Since physics was considered to be the most rigorous of the sciences at that time, things looked bad for natural selection. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z This would require natural selection to be countered by group selection—where groups that cooperate win out over groups that do not. The Idea That Trees Talk to Cooperate Is Misleading 2021-07-19T04:00:00Z The Wallace’s owlet and five other birds honor Alfred Russel Wallace, a British naturalist, explorer and anthropologist credited, along with Charles Darwin, for conceiving the theory of evolution through natural selection. Bird lovers are grappling with honorary names linked to racists. Audubon tops the list. For nearly a century after Charles Darwin published his theory of evolution by natural selection in 1859, biologists struggled to identify precisely what caused adaptive traits to be inherited by future generations. It’s time to consign the “selfish gene” to the history books 2021-05-30T04:00:00Z An adaptation, such as the number of heart chambers, is a genetic variation that is favored by natural selection and provides an advantage to an organism in a particular environment. Biology for AP Courses 2022-06-09T00:00:00Z But because of the shrinking age of the Earth, he died with a major cloud hanging over his mechanism of natural selection. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z When these forces conflict, natural selection almost always wins, because individuals are so much more numerous than groups and turn over much more rapidly. The Idea That Trees Talk to Cooperate Is Misleading 2021-07-19T04:00:00Z In many species, the few individuals who make it to old age are practically invisible to natural selection because they are no longer passing on their genes, nor helping raise their relatives’ progeny. How Long Can We Live? 2021-04-28T04:00:00Z The central concept that held it together was the gene: a hypothetical unit of natural selection that was passed on through inheritance. It’s time to consign the “selfish gene” to the history books 2021-05-30T04:00:00Z A species’ life history is genetically determined and shaped by the environment and natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Darwin's final words on the topic, written in 1880 just two years before his death, expressed a plaintive hope that future developments might reconcile the needs of natural selection with physics calculations. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z Biology runs on a motor of unpredictable “mistakes”—known as mutations—that generate the variability seen across individuals in a species and interact with our environment to drive evolutionary change through natural selection. The Fading Dream of the Computer Brain 2021-04-29T04:00:00Z Most longevity researchers agree that aging, the set of physical processes of damage and decay that result in death, is not an adaptive trait shaped by natural selection. How Long Can We Live? 2021-04-28T04:00:00Z Scientists believe that the drastic shift in form is a product of evolution and natural selection. The Ocean’s Youngest Monsters Are Ready for Glamour Shots 2021-03-30T04:00:00Z Discuss how natural selection might influence the phenomenon revealed by this study. Biology for AP Courses 2022-06-09T00:00:00Z But Darwin's hope that Kelvin would be proven wrong, and that eventually it would be shown that sufficient time existed for natural selection to work, was realized, 30 years after his death. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z In that context, a system as creative and elegant as natural selection seems like a nifty bit of engineering for God to include to keep the system fresh and allow it to repair itself. Opinion | The cicadas are a godsend 2021-04-09T04:00:00Z Foes of "big government" want a government that rules in the name of some higher power that bends wayward humans to its will — be it God, America, the market or natural selection. "Big government" and other lies we live by: How one Orwellian concoction consumed America 2021-03-28T04:00:00Z “Life, like evolution and natural selection, ultimately doesn’t care about what’s true. It cares about what works.” Review | We’re constantly fooling ourselves — and that’s (mostly) okay 2021-03-24T04:00:00Z These patterns evolve through natural selection; they allow species to adapt to their environment to obtain the resources they need to successfully reproduce. Biology for AP Courses 2022-06-09T00:00:00Z Hence the younger the age of the Earth, the more likely it was that natural selection could not be the mechanism. When Lord Kelvin Nearly Killed Darwin's Theory 2021-09-05T04:00:00Z Any predator designed to feast on cicadas is going to get awfully hungry between meals, and natural selection will favor consumers of more frequently available chow. Opinion | The cicadas are a godsend 2021-04-09T04:00:00Z Rather counterintuitively, scientists argue aging is the outcome of natural selection, which favors genes that help an organism survive to reproductive age. What can ants, bees, and other social insects teach us about aging? 2021-03-25T04:00:00Z Evolutionary psychology traces our emotions and actions to instincts embedded in our ancestors by natural selection. Can Science Illuminate Our Inner Dark Matter? 2021-02-06T05:00:00Z Species are not static, but slowly changing and adapting to their environment by natural selection and other evolutionary forces. Biology for AP Courses 2022-06-09T00:00:00Z “It’s one of the strongest signals of natural selection ever observed,” says Tishkoff, who was not involved with the study. Humans were drinking milk before they could digest it 2021-01-27T05:00:00Z For this capacity to be a target of natural selection, however, the new information that dreaming discovers must provide at least some periodic survival benefit. Review | In our dreams, a theater of the unconscious 2021-01-21T05:00:00Z The advent of flowering plants suggested evolution could be both rapid and abrupt, in direct contradiction to an essential element of natural selection, natura non facit saltum - nature makes no leap. New light shed on Charles Darwin's 'abominable mystery' 2021-01-22T05:00:00Z The virus is not a static target, and the world is witnessing a vivid and unnerving demonstration of Darwinian natural selection. Biden is ‘inheriting a disaster’ as coronavirus continues to grip nation amid chaotic vaccine rollout 2021-01-19T05:00:00Z Timing and coordination of behavior are regulated by various mechanisms and are important in natural selection. Biology for AP Courses 2022-06-09T00:00:00Z That suggests that natural selection compelled different species to find alternative ways of using their environment in order to coexist, a phenomenon known as "nice partitioning." Paleontologists may have found the largest dinosaur of all time 2021-01-19T05:00:00Z Darwinian natural selection would have begun there, as those molecules—the first genomes—reproduced, mutated, and evolved. How viruses shape our world 2021-01-14T05:00:00Z The virus is not static, and although the mutations are random, natural selection will lead to variants that are more capable of infecting and replicating in human beings. CDC foresees spread in U.S. of highly contagious coronavirus variant 2021-01-06T05:00:00Z Propagating the politically correct and dystopian view that women and men are interchangeable in the homes defies the obvious differences that natural selection has evolved. Opinion | What Has Feminism Achieved? 2021-01-02T05:00:00Z Timing and coordination of behavior are regulated by various mechanisms and are important in natural selection. Biology for AP Courses 2022-06-09T00:00:00Z It’s similar to the animal kingdom, where mutations and natural selection rein. Bearly recognizable: A child’s cuddly friend could be cuttlefish 2020-12-24T05:00:00Z They are infamous partly because a single-stranded RNA genome is subject to frequent mutation as the virus replicates, and such mutation supplies a richness of random genetic variation upon which natural selection can work. How viruses shape our world 2021-01-14T05:00:00Z The mutations may be signals that the virus is adapting itself to humans and, through natural selection, finding ways to grow and spread. Vaccines will work against new coronavirus variants spreading through U.K. and South Africa, experts believe 2020-12-24T05:00:00Z Antibiotic resistance occurs through random mutation and natural selection. Antibiotic overuse on kids may make such drugs useless against superbugs 2020-12-11T05:00:00Z Timing and coordination of behavior are regulated by various mechanisms and are important in natural selection. Biology for AP Courses 2022-06-09T00:00:00Z It turns out natural selection applies to the stuffed animal kingdom, too. Bearly recognizable: A child’s cuddly friend could be cuttlefish 2020-12-24T05:00:00Z Charles Darwin was an English scientist - naturalist, geologist and biologist - best known for his work on the theory of evolution by natural selection. Charles Darwin: Notepads worth millions lost for 20 years 2020-11-24T05:00:00Z On Nov. 24, 1859, British naturalist Charles Darwin published “On the Origin of Species,” which explained his theory of evolution by means of natural selection. Today in History 2020-11-24T05:00:00Z The indifferent process of Darwinian evolution by natural selection took a laborious 3.85 billion years to craft us from our unicellular microorganism precursors into the way we are today. Review | With CRISPR, humans can create their own evolutionary future 2020-11-19T05:00:00Z Timing and coordination of behavior are regulated by various mechanisms and are important in natural selection. Biology for AP Courses 2022-06-09T00:00:00Z And natural selection would have favored that gene variant only in people who lived at high altitude year-round, says archaeologist Mark Aldenderfer, professor emeritus at the University of California, Merced. DNA tracks mysterious Denisovans to Chinese cave, just before modern humans arrived nearby 2020-10-29T04:00:00Z The coronavirus has hit Ecuador’s idyllic Galapagos Islands, which once helped Charles Darwin refine his theory of evolution and natural selection. Crisis in the Galapagos: Chinese fishing fleets and COVID-19 threaten a natural wonder 2020-10-18T04:00:00Z “This is natural selection, not random. And it’s a clear message from nature telling us, ‘We want the newborns to be exposed to feces.’” Eating a tiny bit of mom’s poop could give C-section babies an immune ‘primer’ 2020-10-01T04:00:00Z Evolution by natural selection requires three processes to create design without a designer: information must be copied, the copies must vary, and then only some of them survive to be copied again. How to Be a Mystical Materialist 2020-09-15T04:00:00Z The idea that behaviors evolved as a result of the pressures of natural selection is not new. Biology for AP Courses 2022-06-09T00:00:00Z In particular, evolution by natural selection, the central concept underlying the biological sciences, is utterly incompatible with most creationist faith traditions. Faith and politics mix to drive evangelical Christians’ climate change denial 2020-09-13T04:00:00Z But natural selection in favour of G viruses isn’t the only, or even the most likely, explanation for this pattern. The coronavirus is mutating — does it matter? 2020-09-07T04:00:00Z It contains the code of information that allows it to replicate, and does so with enough inexactitude to allow natural selection to work its wonders. NASA rover Perseverance will prowl ancient lake bed on Mars for signs of life 2020-07-27T04:00:00Z This hot spot of evolution took place only in Siglec gene variants, not in nearby genes on the chromosome, suggesting natural selection favored these changes, presumably because they helped fight pathogens that target Neu5Ac. Ancient microbial arms race sharpened our immune system—but also left us vulnerable 2020-07-24T04:00:00Z This type of interaction, even if “dishonest,” would be favored by natural selection if it is successful more times than not. Biology for AP Courses 2022-06-09T00:00:00Z But Pääbo says the change “smells” like a product of natural selection. Neanderthal gene linked to increased pain sensitivity 2020-07-22T04:00:00Z The university acknowledged Fisher’s “remarkable scientific discoveries,” including his application of mathematical theory to the process of natural selection, but decided to strip the name to “broaden and strengthen our community for all its members.” Amid protests against racism, scientists move to strip offensive names from journals, prizes, and more 2020-07-02T04:00:00Z The fluid environment is unbound by gravity and hard surfaces, so natural selection allows for a riotous array of unfamiliar body parts and architectures. The Sea’s Weirdest Creatures, Now in ‘Staggering’ Detail 2020-06-05T04:00:00Z “What is best for natural selection in the short run may be the wrong selection tomorrow.” Ancient microbial arms race sharpened our immune system—but also left us vulnerable 2020-07-24T04:00:00Z One explanation for altruistic-type behaviors is found in the genetics of natural selection. Biology for AP Courses 2022-06-09T00:00:00Z Consider Newton and Leibniz on the invention of calculus, or Darwin and Wallace on their independent and effectively simultaneous recognition of natural selection. Decoding the Universe 2020-06-02T04:00:00Z The novel distinctions were “most likely the result of natural selection,” they concluded. Monster or Machine? A Profile of the Coronavirus at 6 Months 2020-06-02T04:00:00Z This analysis revealed some evidence for natural selection against structural variants in non-coding sequences that control gene expression. Thousands of human sequences provide deep insight into single genomes 2020-05-26T04:00:00Z In bees and other eusocial organisms, a single queen produces offspring, and workers are sterile, so natural selection operates on the entire nest. Bumblebees Bite Plants to Force Them to Flower (Seriously) 2020-05-21T04:00:00Z No one disputes that certain behaviors can be inherited and that natural selection plays a role retaining them. Biology for AP Courses 2022-06-09T00:00:00Z Far more likely, they suggested, was that the virus emerged naturally and became stronger through natural selection. Could Covid-19 be manmade? What we know about its origins 2020-05-01T04:00:00Z These space-faring microbes supposedly provided the seeds for life on earth and spurred evolution thereafter; natural selection played little or no role in creating the diversity of life. Remembering Big Bang Basher Fred Hoyle 2020-04-11T04:00:00Z All viruses evolve over time, accumulating mutations as they replicate imperfectly inside a host’s cells in tremendous numbers and then spread through a population, with some of those mutations persisting through natural selection. The coronavirus isn’t mutating quickly, suggesting a vaccine would offer lasting protection 2020-03-24T04:00:00Z Shrewsbury’s most famous resident is Darwin, the English naturalist famed for his theories of evolution and natural selection. Survival of fittest: Liverpool heads to Darwin’s birthplace 2020-01-24T05:00:00Z These patterns evolve through natural selection; they allow species to adapt to their environment to obtain the resources they need to successfully reproduce. Biology for AP Courses 2022-06-09T00:00:00Z In their paper, Leroi and his co-authors suggest the answer is a variation on natural selection they call cultural selection “that, in turn, rests on known psychological biases in aesthetic appreciation.” Pop Culture’s Rate of Change May Mirror Organic Evolution 2020-01-22T05:00:00Z And yet, natural selection seems to maintain the system in working order. The kill-switch for CRISPR that could make gene-editing safer 2020-01-14T05:00:00Z And they’re evident when intelligent design theorists complain that evolution by natural selection still has not been proven. 5 ways Trump and his supporters are using the same strategies as science deniers 2019-12-01T05:00:00Z As a “paradox,” SSB is assumed by biologists to be so obviously costly that it must either yield tremendous benefits or be otherwise impervious to elimination by natural selection. Why is Same-Sex Sexual Behavior So Common in Animals? 2019-11-20T05:00:00Z Explain how natural selection was likely involved in the development of this behavior that can be observed in humans today. Biology for AP Courses 2022-06-09T00:00:00Z “The raw material of natural selection is genetic diversity. Increase diversity and you increase the chances of survival. It’s a way of hedging your bets.” In the Sierra, scientists bet on 'survivor' trees to withstand drought and climate change 2019-11-18T05:00:00Z "Once I learned about evolution and natural selection, I decided this was the most interesting thing to spend time on," Moran says. A love of insects and their microbial partners helped this biologist reveal secrets of symbiosis 2019-11-14T05:00:00Z It’s a kind of natural selection that goes on, creating a community which is much more European, open and tolerant in its mindset. How the megacities of Europe stole a continent’s wealth 2019-11-10T05:00:00Z This is an example of natural selection, the theory of evolution developed by Charles Darwin. Climate change alters red deer gene pool 2019-11-05T05:00:00Z This trait got randomly selected by natural selection, thus became preferentially incorporated into the human lineage. Biology for AP Courses 2022-06-09T00:00:00Z “Natural selection is a powerful force and we are all trying to work to speed up adaptation through natural selection,” said Sally Aitken, a professor of forest genetics at the University of British Columbia. In the Sierra, scientists bet on 'survivor' trees to withstand drought and climate change 2019-11-18T05:00:00Z Specific genetic differences that predispose to obesity or leanness are then propagated by natural selection depending on whether starvation or predation was the greater risk. Obesity Is in the Genes 2019-10-31T04:00:00Z That same year, Darwin’s cousin Francis Galton published Hereditary Genius, a book that recast natural selection as a question of social planning1. Ethical research — the long and bumpy road from shirked to shared 2019-10-28T04:00:00Z He added that the research showed that natural selection "may help populations adapt to climate warming." Climate change alters red deer gene pool 2019-11-05T05:00:00Z However, the trait was selected by natural selection due to a random chance event in the gene frequency of individuals showing fight or flight behavior. Biology for AP Courses 2022-06-09T00:00:00Z The vessel circumnavigated the globe twice and Darwin was its naturalist when he made the discoveries that led to his theory of natural selection. Dock where Darwin's ship 'was dismantled' revealed 2019-10-28T04:00:00Z The most likely agent of natural selection was the nectar being produced by the many new species of flowering plants, Dr. Kawahara’s team believes. How the Butterfly Discovered Daylight 2019-10-21T04:00:00Z Scientists must endure not merely Shakespeare’s King Lear, but Newton’s laws of motion, Darwin’s theory of natural selection, and Einstein’s theory of general relativity. How Harold Bloom, the Late Literary Critic, Helped Me Write The End of Science 2019-10-20T04:00:00Z If the resulting ORF produces a beneficial protein, the novel sequences would remain in the genome and undergo natural selection, eventually evolving into larger genes that code for more complex proteins. New universe of miniproteins is upending cell biology and genetics 2019-10-17T04:00:00Z How do these data support the claim that one species’ response to information can affect natural selection in another species? Biology for AP Courses 2022-06-09T00:00:00Z Expressing these sequences at low levels could help natural selection to weed out potentially dangerous portions — those that create messy or misfolded proteins — so that what remains in a species is relatively benign. How evolution builds genes from scratch 2019-10-15T04:00:00Z Known as cell competition, it works a bit like natural selection between species, in that fitter cells win out over their less-fit neighbours. These secret battles between your body’s cells might just save your life 2019-10-14T04:00:00Z As empirical science ossifies, journalists such as myself, who feed society’s hunger, will come under more pressure to tout theories that supposedly transcend quantum mechanics or the big bang theory or natural selection. How Harold Bloom, the Late Literary Critic, Helped Me Write The End of Science 2019-10-20T04:00:00Z It’s typically thought that hominin species diverged, a bit like branches on a tree, and that this process was driven by natural selection. Q&A: gender, race and field trips in South African anthropology 2019-10-02T04:00:00Z Explain how these data support the claim that communication of information affects natural selection in the small bird species. Biology for AP Courses 2022-06-09T00:00:00Z A factor not considered by Yang and colleagues in their work is the role of natural selection owing to the frogs’ bright colours. Leapfrog to speciation boosted by mother’s influence 2019-10-01T04:00:00Z This finding implied that natural selection might have favored men with a predisposition to violence before the rise of civilization. My Regrets about Controversial Anthropologist Napoleon Chagnon (RIP) 2019-09-29T04:00:00Z “Natural intelligence”—the intelligence of biological organisms—is an evolutionary adaptation, and like other such adaptations, it emerged under natural selection because it improved survival and propagation of the species. Don't Fear the Terminator 2019-09-26T04:00:00Z If we can set aside our bias for a moment, we can see that these microbes have journeyed through the natural selection voyage just as we have. Man v mosquito: what to do about our biggest killer 2019-09-20T04:00:00Z Because changes in genes drive both the unity and diversity of life, organisms without genetic variation cannot evolve through natural selection. Biology for AP Courses 2022-06-09T00:00:00Z He then goes on to describe in some detail the operation of natural selection. Winston Churchill’s Thoughts on Evolution 2019-09-16T04:00:00Z They converge on the truth, embodied by quantum mechanics, evolution by natural selection, the genetic code. Pluralism: Beyond the One and Only Truth 2019-09-14T04:00:00Z And almost nowhere else on Earth is the need for conservation as acute as in the islands that greatly influenced Charles Darwin’s theory of natural selection. Houston Zoo plans improvements, preps for 2022 centennial 2019-09-03T04:00:00Z But in humans, natural selection apparently did exactly that. Have humans developed natural defenses against suicide? 2019-08-22T04:00:00Z Ultimately, natural selection leads to greater adaptation of the population to its local environment; it is the only mechanism known for adaptive evolution. Biology for AP Courses 2022-06-09T00:00:00Z The one fundamental mechanism on which all of this picture relies is natural selection. Winston Churchill’s Thoughts on Evolution 2019-09-16T04:00:00Z That suggests natural selection specifically favored short stature in this group, the authors say. ‘Stature gene’ may reveal why these hunter-gatherers are among the world’s smallest humans 2019-08-13T04:00:00Z Dr. Nielsen replied that phylogenetic studies also involve subjective choice, and that the loss of a useful trait goes against natural selection. A Battle Is Raging in the Tree of Life 2019-08-02T04:00:00Z He suggests certain mental disorders are associated with suicide because they were designed by natural selection to be last-line defenses against it. Have humans developed natural defenses against suicide? 2019-08-22T04:00:00Z |
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