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.

What shapes a bone?

Researchers at Johns Hopkins found that use over time and not just genetics informs the structure of jaw bones in human populations. The researchers say these findings may be used to predict the diet of an ancient population, ...

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 ...

Experts: Ancient Mexicans crossbred wolf-dogs

(AP) -- Mexican researchers said Wednesday they have identified jaw bones found in the pre-Hispanic ruins of Teotihuacan as those of wolf-dogs that were apparently crossbred as a symbol of the city's warriors.

Dinosaur-chewing mammals leave behind oldest known tooth marks

Paleontologists have discovered the oldest mammalian tooth marks yet on the bones of ancient animals, including several large dinosaurs. They report their findings in a paper published online June 16 in the journal Paleontology.

A misplaced dinosaur tooth may have been cannibalism

(PhysOrg.com) -- You don't have to be a paleontologist to suppose that way back when dinosaurs roamed the Earth chances were good meat eaters would dined on one of their own. Short of a time-machine trip back 70 million years, ...

The evolutionary puzzle of the mammalian ear

The vertebrate ear is a remarkable structure. Tightly encapsulated within the densest bone of the skeleton, it comprises the smallest elements of the vertebrate skeleton (auditory ossicles) and gives rise to several different ...

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