Somewhere between the saguaro cacti and the endless blue sky, Arizona has been quietly hiding one of the most extraordinary ...

Wild monkeys in West Africa can climb vertical tree trunks using foot flexibility scientists did not realize they possessed.

Discover 25 hidden secrets of the 'Hobbit' species' human-like walk. Uncover surprising anatomical facts and evolutionary ...

Ancient footprints in Kenya reveal that eight Paranthropus boisei may have traveled together 1.4 million years ago, with some ...

Neanderthals had more robust heel bones than we do, and while genetics probably accounted for much of this difference, modern ...