| 单词 | flatworm |
| 例句 | The lake is popular with ducks and with people, and snails that host the flatworms are common in shallower sections. Swimmer’s itch recurring problem in Michigan lakes 2014-06-29T04:00:00Z There's a good deal of straightforward information: what flatworms and moths and aphids look like, their habits and histories, and many pages of photographs and illustrations. Bugs Britannica by Peter Marren, edited by Richard Mabey 2010-06-11T23:15:00Z He devoted himself to fighting flatworms in children living along the Mekong River. Lawrence Wright’s New Pandemic Novel Wasn’t Supposed to Be Prophetic 2020-03-12T04:00:00Z Marsupials in South America and Australia were not only similar but hosted similar flatworm parasites. Has the science in Ice Age 4 gone adrift? 2012-07-16T07:00:04Z Diagnoses of infection with Opisthorchis, a family of flatworms, are the most common, but they occur mainly in East and Southeast Asia. How to be smart when it comes to ordering, cooking and eating raw fish 2023-04-18T04:00:00Z The pattern of cells in the nervous system suggested the animals belong to a vast group called the lophotrochozoans, which includes mollusks, corallike animals called bryozoans, brachiopods, and flatworms. ‘Mind-boggling’ sea creature spotted off Japan has finally been identified 2023-09-21T04:00:00Z That's the reality for ants infected with the lancet liver fluke, a tiny parasitic flatworm. Brain-altering parasite turns ants into zombies at dawn and dusk 2023-09-17T04:00:00Z These flatworms can grow well over a foot long. Meet the hammerhead worm: The invasive species coming to a backyard near you 2023-08-04T04:00:00Z An even more striking example of this apparent “overall vision” of multicellular structures is found in primitive flatworms called planarians. Synthetic Morphology Lets Scientists Create New Life-Forms 2023-05-31T04:00:00Z Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. Fundamentals of Biology 2015-01-01T00:00:00Z But using techniques developed to recover badly degraded ancient DNA, the scientists at last put a family name to this mystery swimmer: It belonged to a group of parasitic flatworms called digenean flukes. ‘Mind-boggling’ sea creature spotted off Japan has finally been identified 2023-09-21T04:00:00Z Most flatworms are parasitic, including important parasites of humans. Concepts of Biology 2013-04-25T00:00:00Z While these worms are relatively new arrivals on U.S. soil, they’ve still been here since the early 1900s and are just one group of many flatworms living in our backyards. Meet the hammerhead worm: The invasive species coming to a backyard near you 2023-08-04T04:00:00Z Cancer took Dad in the late 1980s; ironically, it was caused by schistosomiasis, a parasitic disease caused by flatworms found in the rivers of North Africa and the Middle East. Commentary: Iraq is the war no one wants to remember. As an Iraqi American, I can never forget 2023-03-19T04:00:00Z All of the remaining flatworms discussed here are part of the Rhabditophora. Fundamentals of Biology 2015-01-01T00:00:00Z California killifish infected with a trematode flatworm, for example, are 10 times to 30 times more likely to become meals for birds than uninfected fish. You May Miss These Parasites When They’re Gone 2023-01-09T05:00:00Z The flatworms are acoelomate organisms that include free-living and parasitic forms. Concepts of Biology 2013-04-25T00:00:00Z Polyploid animals are extremely rare, with only a few examples among the flatworms, crustaceans, amphibians, fish, and lizards. Biology for AP Courses 2022-06-09T00:00:00Z Leslie goes on to tally seven more parasites, including flatworms and nematodes. The Scientists Fighting for Parasite Conservation 2022-05-18T04:00:00Z Most flatworms, such as the planarian shown in Figure 1, have a gastrovascular cavity rather than a complete digestive system. Fundamentals of Biology 2015-01-01T00:00:00Z “I didn’t want to keep them in the freezer in my basement,” Dr. Litvaitis said of her flatworms, adding that blackouts are not uncommon in her New Hampshire neighborhood. Finding a Retirement Home for 466 Frozen Flatworm Fragments 2022-03-08T05:00:00Z The flatworms are acoelomate, so their bodies contain no cavities or spaces between the outer surface and the inner digestive tract. Concepts of Biology 2013-04-25T00:00:00Z In simple organisms, such as cnidarians and flatworms, every cell in the body is close to the external environment. Biology for AP Courses 2022-06-09T00:00:00Z Euhaplorchis californiensis, for one, is a trematode flatworm that, in its larval stage, looks a bit like a sperm, with a big head and long tail. The Scientists Fighting for Parasite Conservation 2022-05-18T04:00:00Z Invertebrates include insects, arachnids, nematode worms, annelid worms, mollusks, flatworms, cnidarians, sponges, echinoderms, and crustaceans. Fundamentals of Biology 2015-01-01T00:00:00Z But they require space and maintenance — empty rooms for the bobcat skulls and ultracold freezers for flatworm DNA — ongoing expenses that universities may try to offload once the collectors’ researching days are finished. Finding a Retirement Home for 466 Frozen Flatworm Fragments 2022-03-08T05:00:00Z Researchers say they named the newly identified hammerhead flatworm after covid-19 as a nod to the pandemic that enabled the research. Scientists name newly discovered flatworm after covid-19 2022-02-06T05:00:00Z If the flatworm had a cylindrical body, then the cells in the center would not be able to get oxygen. Biology for AP Courses 2022-06-09T00:00:00Z The flatworm begins its life in a snail, then moves into a California killifish, then to its final destination in the gut of a predatory water bird, such as a heron or egret. The Scientists Fighting for Parasite Conservation 2022-05-18T04:00:00Z However, a few groups, such as cnidarians, flatworm, and roundworms, undergo asexual reproduction, although nearly all of those animals also have a sexual phase to their life cycle. Fundamentals of Biology 2015-01-01T00:00:00Z This destruction is part of the reason she chose to focus on polyclad flatworms, which are dependent on specialized habitats such as coral reefs and can easily absorb pollutants through their body walls. Finding a Retirement Home for 466 Frozen Flatworm Fragments 2022-03-08T05:00:00Z “No field expeditions were possible. I convinced my colleagues to gather all the information we had about these flatworms, do the computer analyses, and finally write this very long paper.” Scientists name newly discovered flatworm after covid-19 2022-02-06T05:00:00Z Planaria are flatworms that live in fresh water. Biology for AP Courses 2022-06-09T00:00:00Z Killifish typically spend their days hiding, however, which runs counter to the flatworm’s agenda. The Scientists Fighting for Parasite Conservation 2022-05-18T04:00:00Z Examples of acoelomates include animals in the phylum Platyhelminthes, also known as flatworms. Fundamentals of Biology 2015-01-01T00:00:00Z Necropsies on the remains of three of the swans determined that a disease caused by a parasitic flatworm killed them. Michigan DNR: Mute swan deaths not due to poisoning 2021-05-08T04:00:00Z But flatworms, a subset of creepy creatures that feed on those soil dwellers and gobble up biodiversity in the process, are a threat to the world’s dirt. Scientists name newly discovered flatworm after covid-19 2022-02-06T05:00:00Z Flame cells are found in flatworms, including parasitic tapeworms and free-living planaria. Biology for AP Courses 2022-06-09T00:00:00Z In flatworms, Dr. Reddien and his colleagues are planning to continue looking for cells that give regenerating neurons a guide to follow. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z The photo shows a swimming flatworm, which has the appearance of a frilly black and pink ribbon. Fundamentals of Biology 2015-01-01T00:00:00Z The flatworm is passed to birds when they ingest certain freshwater snails, the agency said. Michigan DNR: Mute swan deaths not due to poisoning 2021-05-08T04:00:00Z Five years later, he left to supervise a Tulane team studying schistosomiasis, a disease caused by parasitic flatworms, in the Republic of Cameroon in central Africa. Raoult Ratard, Louisiana’s state epidemiologist, dies at 75 2020-04-14T04:00:00Z Planaria are flatworms that live in fresh water. Biology for AP Courses 2022-06-09T00:00:00Z If you slice one of the tiny flatworms in half, the halves will grow back, giving you two identical worms. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z These phyla include animals from flatworms to squids. Fundamentals of Biology 2015-01-01T00:00:00Z The process starts all over again, as the birds' intestinal tract provides a space for the flatworm to reproduce and enter another unsuspecting host. Creepy 'zombie snail' flashes green and orange, freaks out hiker 2019-08-16T04:00:00Z Tobias Boothe, a biologist at the Max Planck Institute of Molecular Cell Biology and Genetics in Dresden, Germany, uses it to visually distinguish the thousands of species of flatworms, a difficult task even for experts. No coding required: Companies make it easier than ever for scientists to use artificial intelligence 2019-07-31T04:00:00Z The flatworm was discovered in the continental United States in 2015, in Florida, and has since been confirmed in Texas and Puerto Rico, according to TISI. Texas woman discovers horde of black worms known to carry dangerous parasite in backyard 2019-07-03T04:00:00Z Cut a flatworm’s head in two, and it will grow two heads. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z Many flatworms are parasitic, including important parasites of humans. Fundamentals of Biology 2015-01-01T00:00:00Z Flies and flatworms shun it, as do mice and wolf spiders. These Mole Rats Felt No Pain, Even From Wasabi’s Burn 2019-05-30T04:00:00Z These flatworms can range between 1.5 and 2.5 inches in length and are a dark brown or black color with a tan underbelly, the University of Florida said. Florida residents warned parasite-carrying New Guinea flatworms are invading part of the state 2018-10-04T04:00:00Z Another Sanger target was the New Zealand flatworm, a major pest which eats earthworms that are crucial in maintaining soil quality. How genome study can save otters, eagles and lonely featherworts 2018-09-23T04:00:00Z Cut an eye off a flatworm — it will grow back. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z The flatworms are acoelomates, so their bodies are solid between the outer surface and the cavity of the digestive system. Fundamentals of Biology 2015-01-01T00:00:00Z But temperate latitudes were thought to be spared: Schistosome flatworms are common only in warm places in Africa, India, and South America. A tropical parasitic disease has invaded Europe, thanks to a hybrid of two infectious worms 2018-08-28T04:00:00Z Terrestrial flatworms are, as the name implies, flat-ish and possess a unique “creeping sole” on their underside. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z “The trouble is that when we tried to preserve New Zealand flatworms for later sequencing they disintegrated in our hands into a horrible zombie dust mush,” said Mead. How genome study can save otters, eagles and lonely featherworts 2018-09-23T04:00:00Z Stick an eye on a flatworm that lacks eyes — it’ll take root. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z These acoel flatworms were long thought to belong to the phylum Platyhelminthes because of their similar “flatworm” morphology. Fundamentals of Biology 2015-01-01T00:00:00Z Scientists found that a local freshwater snail was serving as the intermediate host that’s essential to the flatworms’ complicated life cycle. A tropical parasitic disease has invaded Europe, thanks to a hybrid of two infectious worms 2018-08-28T04:00:00Z There are terrestrial flatworms native to Europe, but they are usually less than one centimeter long. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z Hammerhead flatworms, which grow to a foot or more in length, do not belong in European vegetable gardens. Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z Pieces as small as one-279th of a flatworm will turn into new, whole flatworms, given the time. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z Most flatworm species are monoecious, and fertilization is typically internal. Fundamentals of Biology 2015-01-01T00:00:00Z Back then, scientists indulged in a little vicarious cannibalism: They chopped up flatworms trained to respond to light, then fed the remains to other flatworms, to see whether the dead flatworms’ memories would transfer. Scientists Made Snails Remember Something That Never Happened to Them 2018-05-15T04:00:00Z Invasive southeast Asian hammerhead flatworms, on the other hand, are measured in inches, not millimeters. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z In 2013, a group of terrorized kindergartners claimed they saw a mass of writhing snakes in their play field: Again, flatworms. Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z Gathering these and other insights from the study of flatworms may someday help scientists interested in helping humans regenerate injured neurons. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z Since the dawn of the Egyptian civilization — and probably long before that — parasitic flatworms of the species Schistosoma haematobium have lurked in the River Nile. Egypt: The flatworm's revenge 2017-11-07T05:00:00Z Schistosomiasis is a debilitating disease caused by a parasitic flatworm. Pesticides could hike risk of catching a parasitic worm 2017-07-14T04:00:00Z Putting it all together, they determined there are at least five species of invasive hammerhead flatworm in France, three from named species and two unnamed. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z A colleague once tried to put a flatworm in his mouth, Justine recounted. Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z In flatworms, however, cells that perform this guiding role apparently exist in adults. A Worm’s Hidden Map for Growing New Eyes 2020-06-29T04:00:00Z Once the eggs hatch into larvae, the rat excretes them in its feces, at which point a secondary host—usually a snail, a slug, or a flatworm—ingests them. Rat Lungworm, the Tropical Parasite That Took Hawaii by Surprise 2017-06-12T04:00:00Z The similar life cycles of the amphibian flatworm and the one that causes schistosomiasis made Rohr and his colleagues wonder whether agricultural pollution might also affect disease transmission. Pesticides could hike risk of catching a parasitic worm 2017-07-14T04:00:00Z Within species, the flatworms appear to be clones, as their cytochrome oxidase sequences showed 0% intraspecies variability. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z But most flatworms do their damage to humans indirectly. Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z Much of the research in the journal’s first issue focuses on fundamental topics — for example the evolution of early tetrapods and the idiosyncratic genetics of regenerative flatworms. Announcement: Nature launches five new journals for 2017 2017-01-10T05:00:00Z The new genus and species of parasitic flatworm was introduced this week in an article in the Journal of Parasitology. Scientists like Barack Obama so much that they named a parasite after him 2016-09-09T04:00:00Z When these chemicals enter streams and ponds, they increase the amount of algae, which is then eaten by snails that serve as a host for the flatworms. Pesticides could hike risk of catching a parasitic worm 2017-07-14T04:00:00Z In the end, France’s salvation may be the flatworms themselves. Giant Flatworms Invaded France and Ran Amok for 2 Decades before Scientists Realized It 2018-05-28T04:00:00Z “The authors are rightly cautious about the potential impact of the hammerhead flatworms.” Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z The Baracktrema obamai are a distant relative of the parasitic flatworm which causes schistosomiasis, a destructive human ailment which affects millions of people, particularly in the developing world. Barack Obama's latest honor: a parasitic flatworm to bear his name 2016-09-09T04:00:00Z They discovered eggs from four different parasites, including the Chinese liver fluke—a flatworm endemic to marshy areas. Ancient poop shows how diseases may have spread along the Silk Road 2016-07-22T04:00:00Z The flatworms gain their pigment back after a few days, and were otherwise unaffected, according to a study published this week in the journal eLife. These ‘vampire’ flatworms could help treat light sensitivity disorders in humans 2016-06-03T04:00:00Z The illness, which affects more than two hundred million people worldwide, is caused by parasitic flatworms. A Microscope to Save the World 2015-12-21T05:00:00Z What set this discovery of alien flatworms apart, in Justine's eyes, was not just the size of the predators or the duration of the hidden invasion, but where it all happened. Giant predatory worms invaded France, but scientists just noticed them 2018-05-22T04:00:00Z One of the most notorious invasive species in the world has turned up in the mainland United States, raising new concerns about a flatworm that devours snails and earthworms, researchers said Tuesday. Notorious flatworm poses 'serious threat' to US after discovery in Florida 2015-06-23T04:00:00Z Department of Agriculture in Philadelphia, Pennsylvania, and one of the study’s co-authors, first spotted what looked like the flatworm in Florida a few years ago, and he feared the worst. Snail-killing worm invades U.S. mainland 2015-06-23T04:00:00Z Schmidtea mediterranea, a flatworm native to southern Europe and Tunisia, turns from brown to white when exposed to sunlight for 24 or more hours, as scientists discovered when they were studying regeneration in the species. These ‘vampire’ flatworms could help treat light sensitivity disorders in humans 2016-06-03T04:00:00Z Trematodes, a parasitic flatworm, were responsible each time prior. Iowa DNR: Bird flu not suspected in waterfowl deaths 2015-04-29T04:00:00Z "It includes two groups of parasitic flatworms, known as flukes. They are internal parasites." Texas fish fans in mourning after bizarre aquarium die-off 2015-04-16T04:00:00Z The flatworm can “easily be passively spread with infested plants, plant parts and soil,” the article added. Notorious flatworm poses 'serious threat' to US after discovery in Florida 2015-06-23T04:00:00Z Still, France’s snails haven’t vanished yet, mainly because the flatworm has been contained to the greenhouse where it was originally found. Snail-killing worm invades U.S. mainland 2015-06-23T04:00:00Z Porphyrins in high levels are toxic, killing off the cells that produce them and turning the flatworms pale white. These ‘vampire’ flatworms could help treat light sensitivity disorders in humans 2016-06-03T04:00:00Z His method was unorthodox, to say the least: McConnell fed bits of trained flatworms to their untrained brethren. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z The animals – called benthic invertebrates – include flatworms, the blind amphipod and the Tahoe stonefly. Lake Tahoe's tiny creatures dying off at dramatic rate: scientist 2015-01-22T05:00:00Z The flatworm lives on the ground but is able to climb trees to eat native snails. Notorious flatworm poses 'serious threat' to US after discovery in Florida 2015-06-23T04:00:00Z The big unknown for the United States is how sensitive to freezing the tropical and subtropical flatworm will be. Snail-killing worm invades U.S. mainland 2015-06-23T04:00:00Z For example, it hauled an experiment that will look at how microgravity affects the wound-healing abilities of flatworms, and two others that will study how plants grow in space. SpaceX Dragon Capsule Delivers Fresh Supplies to Space Station 2015-01-12T05:00:00Z Rather, the small RNAs would allow the flatworms to recover a brain "environment" that helps them learn a specific behavior more quickly. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z The capsule is also carrying passengers — flatworms and fruit flies. Private Rocket Fails to Stick the Landing 2015-01-10T05:00:00Z "We were also surprised at how large the genome was; it is much bigger than those of other known flatworms, and roughly a third of the size of the human genome," Bennett said. Ick! Tapeworm Infecting Man's Brain Yields Genetic Secrets 2014-11-21T05:00:00Z Besides, Cowie points out, in some areas where the flatworm is found, such as the Hawaiian Islands, it hasn’t become widespread or a major threat to Hawaii’s endemic snails, although it’s unclear why. Snail-killing worm invades U.S. mainland 2015-06-23T04:00:00Z But others start with more modest quests: To better understand the development of flatworms or the way yogurt culture bacteria protect themselves from viruses. Winners Announced For The World's Richest Science Award: The $3 Million Breakthrough Prize 2014-11-09T05:00:00Z He liked writing, science and humor, so he combined them in The Worm Runner’s Digest — a "scientific journal" that he used to reach the masses following the publication of his 1959 flatworm study. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z This happens in flatworms and bed bugs, for instance. Scientists discover 'killer' roundworm sperm 2014-07-29T04:00:00Z Also called bilharzia or snail fever, schistosomiasis is caused by Schistosoma flatworms that live in freshwater snails, which they leave to burrow into humans wading or swimming. Clue to Disease’s Spread in a 6,200-Year-Old Grave 2014-06-30T04:00:00Z The flatworms known as planarians are neuroscience darlings. Flatworms Recall Familiar Environs, Even after Losing Their Heads 2013-09-21T12:15:00.747Z They say we need more support for people who just want to understand basic biology using relatively simple systems such as flatworms, yeast and bacteria. Winners Announced For The World's Richest Science Award: The $3 Million Breakthrough Prize 2014-11-09T05:00:00Z And Scott Rawls, a pharmacologist who works with flatworms at Temple University in Philadelphia, agrees. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z Wnt genes occur in all animals, but the studies looked at their roles in planarian flatworms. How to Regrow a Head 2013-07-25T13:45:00.830Z Cut most species of flatworm in half, and you end up with two flatworms. How to Grow a New Head 2013-07-24T19:05:00Z My complex life goes all the way down to a flatworm. 'Rare Earth' Revisited: Anomalously Large Moon Remains Key To Our Existence 2013-04-21T09:07:54Z The researchers repeated the experiment with other insects, including flatworms, ants, and sand hoppers, and the manmade nano-suit protected them all. Nano-Suit Protects Bugs From Space-Like Vacuums 2013-04-15T20:10:00Z What he was proposing — the existence of a chemical memory trace that encodes training information in flatworms — is nothing short of astounding. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z These findings suggest that stem-cell-associated pathways in parasitic flatworms may be highly modified. The genomes of four tapeworm species reveal adaptations to parasitism 2013-04-03T17:20:55.120Z Some Asian pitcher plants also use the "aquaplaning" method—a textbook example of convergent evolution, Bauer says, because Asian and South American pitchers are as related to each other "as we are to flatworms." One-Way Journey to the Death Pool 2012-12-19T00:15:00Z But we're rewarded by a constant stream of small surprises: bizarre undulating flatworms, a rainbow-colored sea slug, a tiny octopus that flashes iridescent color changes like a hallucination. Scientist at Work Blog: In Caribbean Reefs, Social Shrimp Disappear 2012-07-24T16:07:33Z The flatworm is thought to be of antipodean descent, but also a close relative of a species found in Northern Ireland called Kontikia andersoni. 'First' 50-eyed worm discovered 2012-07-21T13:12:43Z When the flatworm learns a behavior, the brain chemistry changes, and it’s possible these changes alter small RNAs, Jablonka says. Memory in the Flesh: Can memories survive outside the brain? 2015-03-18T04:00:00Z "They are about as related to each other as we are to flatworms, and yet their traps bear astonishing resemblance; a perfect system to study the drivers of convergent evolution." Pollutant turns fly-traps veggie 2012-06-13T23:46:37Z After all, the flatworm planaria does just fine with eyes that are arguably not as good. Pixie Camera Captures Precious Pixels 2011-07-08T22:15:02.170Z Sharer chose to study flatworms for just that reason. Strange Ways of Wooing 2011-02-14T19:28:00Z "New Zealand seems to be the centre of diversity for land flatworms worldwide, and its climate is very similar to Britain," Mr Eversham said. 'First' 50-eyed worm discovered 2012-07-21T13:12:43Z They also looked for population trends in native invertebrates, including clams, nematodes, and flatworms. Musseled-Out Native Species Return to the Hudson 2011-01-21T22:13:22Z They also secrete a yellow fluid to deter predatory flatworms. Earthworms make 'group decisions' 2010-04-09T09:31:00Z If a flatworm be cut in two, the front piece grows out a new tail, the hind piece a new head, and two perfect worms result. Biology A lecture delivered at Columbia University in the series on Science, Philosophy and Art November 20, 1907 Female flatworms do an odd thing after they mate: they fold over and appear to suck out the sperm from their female receptacle. Strange Ways of Wooing 2011-02-14T19:28:00Z No, then we’d have to recognize, say, a chimpanzee as being one-one-hundredth sapient, and a flatworm as being sapient to the order of one-billionth. Little Fuzzy However, two of the flatworms Sharer studied have smooth or almost smooth sperm. Strange Ways of Wooing 2011-02-14T19:28:00Z |
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