| 单词 | coelacanth |
| 例句 | What evolutionists like me hope to achieve through analysis is not merely a description of musical configurations, as one might dissect a fern or a coelacanth, but insight into practice. Just How Russian Was Stravinsky? 2010-04-16T14:16:00Z Young Cariocas, however, also recognized the sentence as a recurring line from a Japanese TV series, “National Kid,” which featured a coelacanth and was a cult hit in Brazil. Waves of Dark History Break on an Olympic Pool 2016-07-13T04:00:00Z Several of those compounds also trigger receptors in bony fish such as zebrafish and the “living fossil” coelacanth, and all of them taste bitter to humans. Ancient sharks may have pioneered the ability to taste bitterness in food 2023-11-12T05:00:00Z The plattenkalk has yielded many different species, including ancient fish like coelacanths and theropod dinosaurs. Never-before-seen jurassic mix between flamingo and whale unearthed 2023-02-04T05:00:00Z When those fossilized creatures were living, this area was blanketed by a balmy bay and was home to sharks that sported swordlike spines, coelacanths and the oldest known ancestor to vampire squids. The ‘Alien Goldfish’ Finds a Home 2022-09-20T04:00:00Z Take the coelacanth, a bony fish that was thought to have become extinct millions of years ago but was found in 1938 by a South African museum curator on a fishing trawler. Fossil Find Tantalizes Loch Ness Monster Fans 2022-08-04T04:00:00Z Scientists long believed coelacanths live about 20 years. Weird ‘living fossil’ fish lives 100 years, pregnant for 5 2021-06-17T04:00:00Z To arrive at that figure, researchers counted tiny, ringlike calcium structures on the scales of coelacanths preserved in a French museum. This ‘living fossil’ could reach 100 years old 2021-06-17T04:00:00Z Only two groups of the lobe-finned fish are alive today: lungfish and coelacanths. Fish had the genes to adapt to life on land—while they were still swimming the seas 2021-02-10T05:00:00Z The most common animal found in the Kayenta Formation is the early turtle Kayentachelys, which swam alongside heavily scaled bony fish, freshwater coelacanths and lungfish. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z "They also preserve the remains of many other Cretaceous creatures including sawfish, coelacanths, crocodiles, flying reptiles, and other land-living dinosaurs," Beevor added. 'Jurassic Park' dinosaur was a 'river monster,' new study says 2020-09-24T04:00:00Z In the past, scientists calculated fish ages by counting big lines on a specific coelacanth scale. Weird ‘living fossil’ fish lives 100 years, pregnant for 5 2021-06-17T04:00:00Z Back in Westoll and Graham-Smith's day, scholars already suspected that tetrapods had evolved from the so-called lobe-finned fishes—creatures with fleshy, powerful fins, a group whose living representatives include the coelacanth and the lungfish. How a 380-Million-Year-Old Fish Gave Us Fingers 2020-06-17T04:00:00Z This includes a coelacanth fish, which served as the basis for the design of “The Creature From the Black Lagoon.” Datebook: Architect R.M. Schindler's historic WeHo home as seen through the female gaze 2019-10-10T04:00:00Z The cartoon highlights creatures such as the wandering albatross, which sports the widest wingspan of any bird alive, as well as the speckled coelacanth fish, a species that’s been around for 407 million years. Today’s Earth Day Google Doodle focuses on some of the planet’s record-breaking creatures 2019-04-22T04:00:00Z The most famous is the coelacanth, a bony fish found in 1938 in the catch of a fisherman in South Africa. These Species Were Said to Be Extinct. Really, They Were Just Hard to Find. 2019-01-18T05:00:00Z The researchers concluded the smaller lines better correlated to a year of coelacanth age — and that indicated their oldest specimen was 84 years old. Weird ‘living fossil’ fish lives 100 years, pregnant for 5 2021-06-17T04:00:00Z Two coelacanths, “our version of the T. Rex,” are so large they reside in a shiny trunk-size box. How to Move 2.8 Million Dead Fish 2018-12-23T05:00:00Z This discovery was followed by the subsequent capture of several more off the Comoros islands in the early 1950s, confirming that coelacanths were definitely not extinct. Older than dinosaurs: last South African coelacanths threatened by oil exploration 2018-08-17T04:00:00Z Curses and Bad Luck: I’m not big on superstitions and curses, but apparently there’s a Cubs curse that involves a goat or a llama or a coelacanth or something. The Calm Case for the Chicago Cubs 2016-10-09T04:00:00Z Yet the creature bending his rod was not a neighborly sunny, but a 37-inch behemoth with teeth to match its fearsome name: an alligator gar, a variant with a snouty, coelacanth look native to Mississippi. The One That Got Away: How an Elusive Fish Captured a New York Town 2016-08-05T04:00:00Z Even though coelacanths are unrelated genetically and show wide evolutionary differences, they age slowly like other dwellers of the deep, sharks and rays, Ernande said. Weird ‘living fossil’ fish lives 100 years, pregnant for 5 2021-06-17T04:00:00Z That raises a puzzling question: If the protein is so bad, why do animals dating back to the 400-million-year-old coelacanth fish taxon produce it? Alzheimer’s protein may help brain fight infection 2016-05-25T04:00:00Z Instead, the report suggested that coelacanths were unlikely to be found next to the first exploration wells. Older than dinosaurs: last South African coelacanths threatened by oil exploration 2018-08-17T04:00:00Z In the course of researching this film, we learned all kinds of amazing facts about the coelacanth. ‘Animated Life: The Living Fossil Fish’ 2015-12-22T05:00:00Z As a top predator, the dinosaur would have had been among the rulers of an ecosystem teeming with huge crocodile-like animals, massive sawfish and coelacanths the size of cars. Swimming dinosaur found in Morocco 2014-09-10T04:00:00Z Then they calculated the number of estimated changes that occurred in the genes over the time since the coelacanth branched off from other vertebrates on the animal family tree. 'Living Fossil' Gets Its Genome Sequenced 2013-04-17T18:00:00Z The coelacanth genome is therefore more likely to shed light on the central evolutionary question of what genetic alterations were needed to change a lobe-finned fish into the first land-dwelling tetrapod. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z Researchers sequenced the genome of the coelacanth: a deep-sea fish that closely resembles its ancestors, which lived at least 300 million years ago. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z Still, very little is known about the coelacanth. ‘Animated Life: The Living Fossil Fish’ 2015-12-22T05:00:00Z Functional assays of enhancers involved in the fin-to-limb transition and in the emergence of extra-embryonic tissues show the importance of the coelacanth genome as a blueprint for understanding tetrapod evolution. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Because coelacanths are one of the only lineages of lobe-finned fish alive today, their genome offers a chance to explore this question. 'Living Fossil' Gets Its Genome Sequenced 2013-04-17T18:00:00Z The decoding of the coelacanth genome, reported online Wednesday in the journal Nature, is a victory for the lungfish as the closer relative to the first tetrapod. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z The coelacanth can reach up to 2m-long and is found lurking in caves deep beneath the waves. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z That was effectively what happened on this day 77 years ago, when a South African museum curator discovered a coelacanth fish, seemingly unchanged from its prehistoric form, plucked live from the ocean. ‘Animated Life: The Living Fossil Fish’ 2015-12-22T05:00:00Z Figure 1A phylogenetic tree of a broad selection of jawed vertebrates shows that lungfish, not coelacanth, is the closest relative of tetrapods. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z A preserved coelacanth in the Museum of Natural History in Vienna. 'Living Fossil' Gets Its Genome Sequenced 2013-04-17T18:00:00Z The idea of decoding the coelacanth genome began six years ago when Chris Amemiya, a biologist at the University of Washington in Seattle, acquired some samples of coelacanth tissue. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z To find out more, an international team of researchers sequenced the coelacanth's genome, which contained nearly three billion DNA bases. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z With their fleshy, lobed fins — complete with bones and joints — and round, paddle-like tails, they look strikingly similar to the coelacanths that lived during the Cretaceous period, when dinosaurs still roamed Earth. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z This invites the question of whether the genome of the coelacanth is as slowly evolving as its outward appearance suggests. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z The genes of lizards and mammals evolved at least twice as quickly as those of the coelacanth, the team reports online today in Nature. 'Living Fossil' Gets Its Genome Sequenced 2013-04-17T18:00:00Z Present-day coelacanths are ferocious predators that live in a twilight zone about 500 feet deep where light barely penetrates. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z And if you think about it, this might be correlated to the fact that the coelacanth lives in a rather extreme and stable environment. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z Modern coelacanths, like their ancestors, “live far down in the ocean, where life is pretty stable”, she says. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z To address the question, we compared several features of the coelacanth genome to those of other vertebrate genomes. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z The coelacanth genes changed at a "markedly" slower rate than those from other animals, Amemiya says. 'Living Fossil' Gets Its Genome Sequenced 2013-04-17T18:00:00Z The Amemiya team does not possess a full coelacanth — these are endangered species — and decoded the genome from tissues obtained from Rosemary Dorrington of Rhodes University in South Africa. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z "From that picture it was clear the lungfish is closer to tetrapods than the coelacanth." Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z For example, the analysis found that coelacanths and tetrapods share a regulatory gene sequence that helps to promote limb development. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z We conclude that the current coelacanth genome shows both an abundance and activity of transposable elements similar to many other genomes. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Rediscovered in 1938, coelacanths use their fleshly lobed fins to paddle the deep sea caves of the Indian Ocean. World's youngest species 2012-11-23T02:06:43Z Dr. Dorrington supplied DNA kits to the Comoro Islands fishermen who occasionally snag coelacanths by accident. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z The coelacanth is thought to have changed very little over millions of years The genetic secrets of a "living fossil" have been revealed by scientists. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z Like lungfish, the other surviving lineage of lobe-finned fishes, coelacanths are actually more closely related to humans and other mammals than to ray-finned fishes such as tuna and trout. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z This suggests a slightly longer divergence time for the two coelacanth species. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z We also find rarer fossil skeletons of coelacanths, a close relative of limbed vertebrates like you and me. Scientist at Work Blog: Gone Fishin' 2012-09-07T11:02:25Z Lobe-finned fish like the coelacanth and lungfish are known to zoologists as sarcopterygians, meaning fleshy fins. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z The coelacanth has four large, fleshy fins, which some scientists believe could have been the predecessors of limbs. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z However, he adds, the lungfish genome is unlikely to be sequenced any time soon because it is much larger and more complicated than that of the coelacanth. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z Our analysis identified 44,200 ancestral tetrapod CNEs that originated after the divergence of the coelacanth lineage. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z While all of these fish belong to the same order of fish as the living coelacanths, not a single coelacanth fossil exists which is anatomically identical to Latimera. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-08T18:46:47.207Z Tetrapods, including people, are descended from this group, and the coelacanth is more closely related to people than to other fish. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z This study is not the only one attempting to understand the coelacanth. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z The African coelacanth is a close relative of the first fishes to venture onto land. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z Here we describe the sequencing and comparative analysis of the genome of L. chalumnae, the African coelacanth. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Both the fossil record and DNA analyses indicate that coelacanths evolve. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-08T18:46:47.207Z The Amemiya team focused on the enhancer DNA sequence because it occurred in the coelacanth and animals but not in ordinary fish. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z The researchers also used the study to try and solve the long-standing question of whether the first tetrapods were more closely related to the coelacanth or the lungfish. Genome of 'living fossil' sequenced 2013-04-17T17:54:26Z “The coelacanth is a cornerstone for our attempt to understand tetrapod evolution,” he says. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z With the availability of gene sequences from coelacanth and lungfish, it became possible to test this hypothesis. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z The fossils that scientists did find are extinct coelacanth species. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-08T18:46:47.207Z They then inserted the coelacanth enhancer DNA into mice. Fish’s DNA May Explain How Fins Turned Into Feet 2013-04-17T21:18:01Z Like the rest of us, they evolve This stuffed coelacanth, described by Smith in 1939, achieved worldwide fame. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Ending one long-standing argument, analysis of the coelacanth genome clearly shows that it is not the closest living fishy relative to tetrapods, Amemiya says: that honour belongs to the lungfish. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z We conclude that the closest living fish to the tetrapod ancestor is the lungfish, not the coelacanth. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z The coelacanth fishes from the Rock Lake shale are part of the varied fauna collected from Garnett. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas The tree was rooted on cartilaginous fish, and shows that the lungfish is more closely related to tetrapods than the coelacanth, and that the protein sequence of coelacanth is evolving slowly. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Indeed – when marine biologists let a remotely operated submersible descend in Tanzanian waters, they were able to capture footage of nine living coelacanths. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z “The coelacanth is a cornerstone for our attempt to understand tetrapod evolution.” ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z Through a phylogenomic analysis, we conclude that the lungfish, and not the coelacanth, is the closest living relative of tetrapods. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Discussion.—Because of the great differences in endocranial structure between the Devonian and Pennsylvanian coelacanths, they are here placed in new subfamilies. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas In a separate analysis we also examined the evolutionary divergence between the two species of coelacanth, L. chalumnae and L. menadoensis, found in African and Indonesian waters, respectively. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Could this be the second home of coelacanths in the Indian Ocean? Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z In a 2012 study, researchers in Japan and Tanzania compared the DNA of the African and Indonesian coelacanths. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z The tree was rooted on cartilaginous fish, and shows that the lungfish is more closely related to tetrapods than the coelacanth, and that the protein sequence of coelacanth is evolving slowly. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z In viewing the changes in the endocranium of Carboniferous and Permian coelacanths, it would be well to consider the mechanical relationship of the loss of the basipterygoid processes to the effect on swallowing prey. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas This is what Japanese and African coelacanth researchers did not long ago when they took stock of the genetic diversity amongst coelacanths in the Indian Ocean. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Numbers of successful modern fishes appear less well equipped for survival than the coelacanth. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z The analysis showed that not all parts of the coelacanth genome are slow to evolve. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z We next examined the abundance of transposable elements in the coelacanth genome. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Study of all of the materials from the above mentioned localities reveals the existence of an hitherto unrecognized genus of coelacanth. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas Aside from the West Indian Coelacanth, there exists a second species of coelacanth that was discovered at a local fish market two decades ago, near Indonesia. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Whatever the exact figure is, fact is that the Indian Ocean harbours distinct populations of coelacanths. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z But Amemiya adds that, for now, the role of non-coding DNA in speciation is “speculative”, and its significance in coelacanth evolution is not clear. ‘Living fossil’ genome unlocked 2013-04-17T17:20:38.200Z The modern coelacanth looks remarkably similar to many of its ancient relatives, and its evolutionary proximity to our own fish ancestors provides a glimpse of the fish that first walked on land. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z A synopsis of the coelacanth fishes of the Yorkshire Coal Measures. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas It was 1939, and the discovery of the first living coelacanth was on the lips of scientists around the world. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z In the late eighties, Hans Fricke filmed how coelacanths inhabit rocky crevices and caves around the Comoros. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Watch the movie above, and see the coelacanth sail the currents with subtle movements of its fins. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Figure 1: A phylogenetic tree of a broad selection of jawed vertebrates shows that lungfish, not coelacanth, is the closest relative of tetrapods. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Latimeria and the history of the coelacanth fishes. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas Biologists reasoned that coelacanths would not be able to survive on the flat and sandy sea floors near Mozambique and South Africa. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z This was especially true for coelacanths captured off northern Tanzania. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z But there’s evidence that these stragglers represent distinct coelacanth populations. Coelacanths are not living fossils. Like the rest of us, they evolve 2012-02-07T12:15:00.227Z Here we report the genome sequence of the African coelacanth, Latimeria chalumnae. The African coelacanth genome provides insights into tetrapod evolution 2013-04-17T17:21:37.460Z Discussion.—The relationship of Synaptotylus to other coelacanths is obscure at present. A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas |
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