Compared with a chimpanzee hand, at left, the human hand, at right, has shorter fingers and palms and a longer, stronger more flexible thumb. That not only allows fine manipulation of tools and ...

By studying chimpanzees, researchers might infer the social and ecological dynamics that shaped ancient tool use. The next time you hold a tool in your hand, consider this: you’re carrying on a ...

A Georgia animal nonprofit nestled in the mountains is holding a special medical event ... is a 230-acre sanctuary where 95 retired chimpanzees make their homes. According to a spokesman for ...