Related topics: teeth · fossil

Discriminating diets of meat-eating dinosaurs

A big problem with dinosaurs is that there seem to be too many meat-eaters. From studies of modern animals, there is a feeding pyramid, with plants at the bottom, then plant-eaters, and then meat-eaters at the top.

Long-sought fossil mammal with transitional middle ear found

Paleontologists from the American Museum of Natural History and the Chinese Academy of Sciences announce the discovery of Liaoconodon hui, a complete fossil mammal from the Mesozoic found in China that includes the long-sought ...

Ancient fish illuminates one of the mysteries of childhood

Remember dropping your milk teeth? After a lot of wiggling the tooth finally dropped out. But in your hand was only the enamel-covered crown: the entire root of the tooth had somehow disappeared. In a paper published in Nature, ...

Mexico finds 50 skulls in sacred Aztec temple

(AP)—Mexican archaeologists said Friday they uncovered the largest number of skulls ever found in one offering at the most sacred temple of the Aztec empire dating back more than 500 years.

Strange new species of duck-billed dinosaur identified

The most complete skull of a duck-billed dinosaur from Big Bend National Park, Texas, is revealed in the Journal of Systematic Palaeontology as a new genus and species, Aquilarhinus palimentus. This dinosaur has been named ...

The tiger beetle: Too fast to see

Speed is an asset for a predator. Except when that predator runs so fast that it essentially blinds itself.

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