A viral video shows an elder chimpanzee beating a younger one at zoo for throwing rocks at visitors. Watch now.

A study in Uganda shows how often chimps use medicinal plants and other forms of health care — and what that says about the roots of human medicine.

Two studies of wild chimps point to the evolutionary roots of human language. The studies found that chimp communication ...

Nonetheless, humans and chimps may share one common motivation for communicating: gossip. A chimp often can't see first-hand what's going on with other members of the troop. So Crockford says they ...

Wild chimpanzees often drum their limbs against the large roots of giant trees, sending out loud, booming sounds that ...

Chimpanzee Travis had lived with Sandra Herold for 14 years - but one day he snapped and attacked her friend Charla Nash in a ...

NPR's Jon Hamilton reports on two new studies that hint at the evolutionary roots of human speech ... throwing a hand in if you want to get a little syncopated. (SOUNDBITE OF CHIMPS YELLING ...

Scientists have found new evidence for how our fossil human relatives in South Africa may have used their hands.

Scientists have found new evidence for how our fossil human relatives in South Africa may have used their hands. Researchers investigated variation in finger bone morphology to determine that South ...

Two new studies hint at the evolutionary roots of human language ... throwing a hand in if you want to get a little syncopated. (SOUNDBITE OF CHIMPS YELLING) HAMILTON: Chimps use drumming to ...