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Latest Animal anatomy Stories

33e893db0aedaa13301d39992ec5038b1
2009-03-11 11:11:07

Researchers from London's Natural History Museum have found a rare fish that features small bone fangs. Found exclusively in a single Burmese stream, the Danionella dracula appears to have lost its teeth over time before it later evolved the fangs made of bone, researchers said in the Royal Society's journal Proceedings B. "When you watch them in captivity you can see the males sparring," NHM's Ralf Britz told BBC News. "They display with their lower jaws open incredibly widely, then they...

2009-02-26 13:37:00

Same Study Uncovers How Each Tooth Signals the Next to Start Growing ROCHESTER, N.Y., Feb. 26 /PRNewswire-USNewswire/ -- A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study published today in the journal Science. When completely understood, the genetic program described in the study may help guide efforts to re-grow missing teeth and prevent cleft palate, one of the most common birth defects. Gene...

fd2ff3de12b142ff6677f81e6e12dc521
2009-02-26 15:25:00

Scientists have reported new insights gathered from a single gene that could one day be used to help adults grow a new set of teeth. Scientists from the University of Rochester bred mice that lacked the oddskipped related-2 (Osr2) gene. They noted that mice that lacked the gene grew an extra set of teeth next to their molars in similar fashion to sharks and other non-mammals. "It's exciting. We've got a clue what to do," Dr. Songtao Shi of the University of Southern California School of...

2009-02-25 06:35:00

Topline Findings from a Survey of More Than 300 Dentists 30,000+ Dentists Converge in Chicago February 27-March 1 CHICAGO, Feb. 25 /PRNewswire-USNewswire/ -- In preparation for the Chicago Dental Society's 144th annual Midwinter Meeting, which will draw more than 30,000 dental professionals to Chicago this February, society members were asked about oral care tips, current trends, their personal dental habits, and more. More than 300 of the society's member dentists responded to the fall...

65aa21b591892a2146cc9d4bdb3e4aed1
2009-02-13 13:48:48

If you've ever tried capturing a lizard, you'll know how difficult it is. But if you do manage to corner one, many have the ultimate emergency quick release system for escape. They simply drop their tails, leaving the twitching body part to distract the predator as they scamper to safety. According to Gary Gillis from Mount Holyoke College, USA, up to 50% of some lizard populations seem to have traded some part of their tails in exchange for escape. This made Gillis wonder how this loss may...

eef7221c16b4093f1f377be255f54cf41
2009-02-12 08:37:41

In an unusual intersection of materials science and anthropology, researchers from the National Institute of Standards and Technology (NIST) and The George Washington University (GWU) have applied materials-science-based mathematical models to help shed light on the dietary habits of some of mankind's prehistoric relatives. Their work forms part of a newly published, multidisciplinary analysis* of the early hominid Australopithecus africanus by anthropologists at the State University of New...

2009-02-10 10:50:58

A paper in this week's PLoS Biology reports that a common gene regulatory circuit controls the development of all dentitions, from the first teeth in the throats of jawless fishes that lived half a billion years ago, to the incisors and molars of modern vertebrates, including you and me. "It's likely that every tooth made throughout the evolution of vertebrates has used this core set of genes," said Gareth Fraser, postdoctoral fellow at Georgia Tech's School of Biology. The first vertebrates...

9c765769b6390e60abf77b3e40ec05e81
2008-11-26 15:20:00

Researchers in China reported finding fossilized remains of the most primitive turtle to date, providing more insight into how reptiles evolved. The fossils depict an ancient turtle with teeth, a fully formed belly shell and a partially formed back shell. Researchers say the so-called Odontochelys (half-shelled turtle with teeth) lived some 220 million years ago. Scientists have lacked enough evidence to prove competing evolutionary theories because turtles have looked pretty much the same...

c09bdb9fd0bdb08a810b98fc73e7da171
2008-09-18 15:42:53

Puzzled about why Fido acts the way he does?  Although some pet behaviors may seem a bit odd, there is usually a sound reason for all of them.  As Cesar Millan, host of the National Geographic Channel's Dog Whisperer, says "pay attention"¦.you can break the code." For example, many pets spontaneously start running through the house as though they are on fire, appearing almost crazy to their unsuspecting owners.  Millan attributes this behavior to simple boredom....

2008-07-26 18:00:13

An 11-year old Brazilian boy was making headlines after sinking his teeth into a pit bull's neck to save himself from an attack by the vicious dog. Local media reported that Gabriel Almeida was playing in his uncle's backyard in the city of Belo Horizonte when the pitbull, called Tita, lunged at him and bit him on the left arm. To protect himself, Gabriel grabbed the dog by the neck and bit back - so hard that he lost a canine tooth. (c) 2008 Western Mail. Provided by ProQuest...


Latest Animal anatomy Reference Libraries

Atlantic Fire Ascidian, Pyrosoma atlanticum
2014-01-12 00:00:00

Pyrosoma atlanticum is a species of colonial tunicate found in temperate waters worldwide, usually between 50°N and 50°S. It is most plentiful at depths below 800 feet. It is found in colonies that are pelagic and move throughout the water column. In the evening the colony will move closer to the surface and descend back by dawn. Large colonies can rise and descend more than 2,500 feet in a single day. A colony of this species is cylindrical and can grow up to 2 feet long and 2.5 inches...

66_cd4d17d5233e06cef9f6342c33ac5c13
2009-10-16 17:56:55

Heterodontosaurus, meaning "different toothed lizard", is a genus of dinosaur from the Early Jurassic Period of what is now South Africa. The type species, H. tucki, was found in the Upper Elliot Formation of the Hettangian age (199 to 196 million years ago). Two species are known. This herbivorous dinosaur ate mostly plants despite having canines. It was a small ornithischian reaching a total length of 3 feet. It had a long, narrow pelvic bone which was like more advanced ornithischians....

42_be9d0558b2d26ba025fc2ee6fb5b097d
2007-10-24 12:34:20

The Giant Pangolin (Manis gigantea), is a species of pangolin. The Giant Pangolin inhabits Africa with a range stretching along the Equator from West Africa to Uganda. It is found mainly in savanna, rainforest, and forest, where there is a large termite population and available water. It does not inhabit high altitude areas. The Giant Pangolin is the largest species of pangolin (scaly anteaters). It belongs to the Manidae family. It was first described by Johann Karl Wilhelm Illiger in 1815....

41_b202465c7a50820c07c40126e8cabd2e
2007-03-19 15:27:17

The Southern Alligator Lizard, Elgaria multicarinata, is a lizard native to the Pacific coast of North America. It is common throughout Southern California and can be found in both grasslands and urban areas. Several subspecies can be distinguished, including the San Diego alligator lizard. It has a prehensile tail up to twice the length of its body. Like many lizards, however, it can drop its tail if attacked, possibly giving it a chance to flee; the tail will regenerate, but will never...

39_83f48105ed71d71662a9eaee4c6221f5
2007-03-19 14:41:22

The Triplewart seadevil, Cryptopsaras couesii, is a seadevil of the family Ceratiidae, found in all oceans, from the surface to 1.24 mi (2,000 m). Its length is approximately 11.81 in (30 cm). The Triplewart seadevil is one of the most abundant of the deepwater anglerfish. These fish have round flabby bodies with a soft fibrous skeleton and a scaleless prickly skin. Like most other deepwater anglerfishes this fish has small eyes, no pelvic fins and is colored black. It has a large...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'