| 单词 | toothed whale |
| 例句 | Known as “toothed whales,” orcas are the largest members of the dolphin family. Author and illustrator explored orcas’ home while creating ‘A Whale of the Wild’ 2020-11-03T05:00:00Z Now a study in the journal Science reveals there is evidence that chimpanzees can experience menopause — a phenomenon previously thought was only experienced by humans and certain species of toothed whales. Female chimps discovered to display signs of menopause, a first for non-human primates 2023-10-28T04:00:00Z Prior to the study, "Demographic and hormonal evidence for menopause in wild chimpanzees," these traits had only been found among mammals in a few species of toothed whales, and among primates -- only in humans. Researcher finds proof of menopause in wild chimpanzees 2023-10-26T04:00:00Z The scientists found large whales such as humpbacks and North Atlantic right whales were among the most vulnerable to climate change, and that other toothed whales and dolphins were also at high risk. Whales and dolphins in American waters are losing food and habitat to climate change, US study says 2023-10-05T04:00:00Z Now there may be even weirder news on the marine biology front: A new paper from the scientific journal PeerJ details crucial new information about the ancient ancestors to these odontocetes, or "toothed whales." Ancient dolphin cousins with odd teeth hint at echolocation evolution 2023-06-24T04:00:00Z Their cousins the toothed whales—sperm whales, belugas, dolphins, and the like—use ultrasonic sonar signals to detect prey, but baleen whales don't have that ability. No One Knows How the Biggest Animals on Earth—Baleen Whales—Find Their Food 2023-03-14T04:00:00Z Many of the toothed whales are much smaller. Study explains mealtime for the minke whale, the ocean's littlest giant 2023-03-15T04:00:00Z Elemans and his colleagues found that toothed whales use the normal and falsetto registers to communicate with each other. Young women are criticized for this vocal tic — but it helps whales survive 2023-03-02T05:00:00Z The sperm whale, a type of toothed whale, also makes a significant contribution of seven million metric tons. All of Humanity Weighs Six Times as Much as All Wild Mammals 2023-03-08T05:00:00Z Just as humans can look at their own teeth and distinguish between incisors, canines and molars, "this is what we see in these early toothed whales." Ancient dolphin cousins with odd teeth hint at echolocation evolution 2023-06-24T04:00:00Z Researchers on Thursday offered a comprehensive explanation for sound production by toothed whales - loud clicks for echolocation, and softer burst pulses and whistles for communication. For toothed whales, sound production is all in the nose 2023-03-02T05:00:00Z But the animals, known as toothed whales, also produce other sounds for social communication, like grunts and high-pitched whistles. Who’s Using Vocal Fry in the Ocean? Dolphins and Whaaaaales. 2023-03-02T05:00:00Z Vocal fry, according to Elemans, “has definitely brought toothed whales very far.” Young women are criticized for this vocal tic — but it helps whales survive 2023-03-02T05:00:00Z Sperm whales, the largest toothed whale, were nearly decimated by the whaling industry in the 19th and 20th centuries. Sperm whale beached in Oregon killed by ship, feds find 2023-01-16T05:00:00Z This was not the only notable difference between ancient toothed whales and their contemporary counterparts — their nostrils were also in strange positions. Ancient dolphin cousins with odd teeth hint at echolocation evolution 2023-06-24T04:00:00Z The sounds made by toothed whales differ from the haunting "singing" by filter-feeding baleen whales. For toothed whales, sound production is all in the nose 2023-03-02T05:00:00Z “We knew toothed whales had this vocal plasticity, which is key for them to learn what sounds to make,” said Mauricio Cantor, a biologist at Oregon State University who was not involved in the study. Who’s Using Vocal Fry in the Ocean? Dolphins and Whaaaaales. 2023-03-02T05:00:00Z She’s a marine biologist at Syracuse University, where she studies baleen whales such as right whales and humpbacks — as opposed to toothed whales such as sperm whales and dolphins. Southern right whale moms may look for quiet place to raise babies 2022-07-04T04:00:00Z I learned the difference between baleen and toothed whales. On Cape Cod Bay, a family vacation for the ages — all of them 2022-05-13T04:00:00Z Bats and toothed whales have specialized anatomy that lets them use such beams for echolocation, sensing their surroundings by deciphering the rebounding sound waves. Antarctic Seals Vocalize in Ultrasonic—but Not for the Usual Reason 2021-02-04T05:00:00Z "In toothed whales, air is only used to drive the phonic lips that then, via tissue acceleration, generates a click that propagates through tissue in the nose and then into the water," Elemans added. For toothed whales, sound production is all in the nose 2023-03-02T05:00:00Z Over a thousand species echolocate, including most bats, all toothed whales, and small mammals. Echolocation is nature’s built-in sonar. Here’s how it works. 2021-02-03T05:00:00Z Large toothed whales, such as sperm whales, feed on large prey occasionally including the fabled giant squid. Why are whales big, but not bigger? 2019-12-16T05:00:00Z It is not clear why the giant penguins disappeared from the oceans millions of years ago but it may be linked to the arrival of large marine competitors such as seals and toothed whales. Human-sized penguin fossil discovered in New Zealand 2019-08-14T04:00:00Z Part of the suborder of mammals called toothed whales, they have 10 to 13 conical teeth in each jaw that interlock to crush and shred their prey. What you need to know about the critically endangered southern resident killer whales 2018-09-25T04:00:00Z The authors of the new report, at the Universities of Exeter and of York in conjunction with the Center for Whale Research, focused on toothed whales. Beluga whales and narwhals go through menopause, too 2018-08-27T04:00:00Z Dolphins and other toothed whales, such as the beluga, echolocate via a specialized organ called the dorsal bursae, which sits at the top of their head, close to the blowhole. Echolocation is nature’s built-in sonar. Here’s how it works. 2021-02-03T05:00:00Z More frequently, large toothed whales feed on medium-sized squid, which are much more abundant in the deep ocean. Why are whales big, but not bigger? 2019-12-16T05:00:00Z According to the UK charity Whale and Dolphin Conservation, there are at least 3,000 cetaceans - the group of "toothed whales" that dolphins belong to - in captivity in 50 countries around the world. Scientists measure dolphin 'happiness' 2018-05-27T04:00:00Z Like other toothed whales, sperm whales act as “collective individuals”. Underwater with Sri Lanka's sperm whales – in pictures 2018-04-05T04:00:00Z Other toothed whales, such as sperm whales, remained fertile. Beluga whales and narwhals go through menopause, too 2018-08-27T04:00:00Z That literally translates to "toothed whales", the broader cetacean family that they belong to. Paleo Profile: The Strange, Defenseless Snout 2017-09-17T04:00:00Z Because of a lack of large enough prey, we found that toothed whales’ energetic efficiency decreases with body size – the opposite of the pattern we documented for baleen whales. Why are whales big, but not bigger? 2019-12-16T05:00:00Z Pygmy sperm whales are small members of the toothed whale group that usually weigh between 700 and 1,000 pounds and measure up to about 11 feet in length, according to the NOAA. Couple who found beached whale thought they saved its life 2017-08-27T04:00:00Z The fossil is about 30 million years old, dating to a time when snout shapes and tooth presence were becoming diverse among the toothed whale suborder. New Species of Prehistoric Dolphin Slurped Up Its Prey 2017-08-23T04:00:00Z This new work suggests that menopause evolved independently in toothed whales three times: once in killer whales, once in short-finned pilot whales and once in the common ancestor of narwhals and belugas. Beluga whales and narwhals go through menopause, too 2018-08-27T04:00:00Z Coronodon isn’t the oldest such ancestor, but it does provide a new evolutionary link between the modern baleen whale and the group of toothed whales from which they are descended, known as archaeocetes. 30-million-year-old whale provides insight into how modern whales began filter feeding 2017-06-29T04:00:00Z Therefore, we think the ecological limits imposed by a lack of giant squid prey prevented toothed whales from evolving body sizes greater than sperm whales. Why are whales big, but not bigger? 2019-12-16T05:00:00Z The skull confirms that Platanista belongs to one of the oldest lineages of toothed whales still alive today. New species of fossil dolphin found - BBC News 2016-08-17T04:00:00Z Echolocation, or biological sonar, is used by all the world's toothed whales such as dolphins, sperm whales and orcas. Hear! Hear! Exquisite fossils preserve ear of prehistoric whale 2016-08-04T04:00:00Z The species is a relative of modern toothed whales like dolphins, porpoises and sperm whales. An Ancient ‘Echo Hunter’ Provides Clues on Whale Evolution 2016-08-04T04:00:00Z These toothed whales eat thousands of pounds of fish and squid—about one ton per day. Sperm Whales in Caribbean Have Distinct Culture And bats and some toothed whales produce sonar, which helps them hunt by listening to reflected sound. The Electric Eel’s Superpower Just Got Even Cooler 2015-10-20T04:00:00Z Those remains—the first of any toothed whale to also include fossils of its presumed prey, researchers say—were unearthed along the southwestern coast of Peru last year. Ancient whale fossilized with its last meal 2015-09-08T04:00:00Z By revealing these acoustic secrets in detail, researchers are hoping to develop ways to prevent porpoises, and other toothed whales, from becoming trapped in fishing nets. Porpoises, whales and dolphins use 'sound searchlights' 2015-03-29T04:00:00Z Dolphins are part of the family of toothed whales that includes orcas and pilot whales. Five rescued after dolphin 'attack' 2014-10-02T04:00:00Z The site includes two seals, an extinct species of sperm whale, a walrus-like toothed whale, and an aquatic sloth. Chilean highway project unearths amazing graveyard of fossilized whale skeletons 2014-02-26T01:07:00Z Only about 1,000 sperm whales – the world's biggest toothed whales – are thought to live in the Mediterranean. Spanish sperm whale death linked to UK supermarket supplier's plastic 2013-03-08T17:53:21Z The new fossils date to 17 to 19 million years ago, or the early-mid Miocene epoch, making them the youngest known toothed whales. New Whale Species Unearthed in California Highway Dig 2013-02-17T22:37:28Z "It is the most evolutionarily distinct toothed whale so to lose this species would mean losing a considerable amount of evolutionary history." Are these animals too 'ugly' to be saved? 2012-11-20T01:27:34Z Scientists there are studying how dolphins and toothed whales hear. Whales Show Signs of Coping With Man-Made Noise Underwater 2012-07-16T18:11:57Z This toothed whale is still common in nearly all parts of Hudson Bay, and considerable numbers are taken by means of nets at Fort Churchill. A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772 New Edition with Introduction, Notes, and Illustrations 2011-12-26T03:00:13.520Z More significantly, the ratio of brain size to body mass in the sperm whale and other toothed whales and dolphins is impressively high, bested only by ours. Save a Whale, Save a Soul, Goes the Cry 2010-06-26T19:29:00Z Sperm whales are toothed whales that eat all kinds of fish, even sharks. Toxins Found in Whales Bode Ill for Humans 2010-06-25T15:15:00Z In toothed whales, you find strong bonds in killer whales, between entire families, and sperm whales between females and juveniles. Humpback whales form friendships 2010-06-07T07:41:00Z Scientists recognize two suborders of living cetaceans: the whalebone whales, suborder Mysticeti, and the toothed whales, suborder Odontoceti. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification The toothed whales, on the other hand, are very largely represented in a fossil state, reaching as low in the geological series as the upper Cretaceous. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" The whales of to-day are divided into the toothed whales and the whalebone whales. More Science From an Easy Chair A large cetacean, belonging to the division of delphinoid or toothed whales. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. These are reincarnated in minute animals like the open-sea crustaceans, which again are utilised by fishes, these in turn making life possible for higher forms like carnivorous turtles and toothed whales. The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told The data form located at the end of this guide, usable on both baleen and toothed whales, includes all the measurements routinely taken by cetologists plus a few new ones the authors consider important. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification At present we are totally in the dark as to the origin of the whalebone-whales, not being even assured that they are derived from the same stock as the toothed whales. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" Some fossil jaws and skulls of whales from miocene and older tertiary strata are known which tend to connect the toothed whales with those mammals not modified for marine life. More Science From an Easy Chair The Beluga is a toothed whale, in contradistinction to those that are supplied with the whalebone-like arrangement that characterizes the right whales: consequently its food consists of fish and perhaps squid. Lippincott's Magazine Of Popular Literature And Science Old Series, Vol. 36—New Series, Vol. 10, July 1885 Only the toothed whale eats fish; the others live upon animalculae and the most minute of marine life, called "brit" by the whalers. The New North Baleen whales are externally distinguishable from toothed whales by having paired blowholes. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification The differences between baleen and toothed whales are easy enough to see in animals washed up on the beach or maintained in a tank at a zoo or aquarium. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification The bones of the face are also, in them, more like those of an ordinary mammal than is the case with modern toothed whales. More Science From an Easy Chair Note the single open blowhole, a characteristic that marks these animals as toothed whales. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification The third, the sperm whale, is a toothed whale. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification Unlike the baleen whales, the toothed whales do have teeth after birth. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification In addition, toothed whales have only a single blowhole. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification All toothed whales have teeth, which are used primarily for grasping rather than for chewing. Whales, Dolphins, and Porpoises of the Western North Atlantic A Guide to Their Identification |
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