However, the squirrel probably neither knew nor cared that he was gnawing on the skull of a close relative. Had it stumbled into a human skull, it would have put the teeth to that. Squirrels chew ...

A nearly complete skull fossil found in Egypt has revealed a new species of Hyaenodonta, an apex carnivore that mysteriously went extinct about 25 million years ago.

(For instance, you’re more likely to see a squirrel or a deer on a hike than a cougar, Borths said.) And often, only teeth or fragments of skulls are found, he added. The discovery of such a ...

(For instance, you’re more likely to see a squirrel or a deer on a hike than a cougar, Borths said.) And often, only teeth or fragments of skulls are found, he added. The discovery of such a ...