The San Francisco Zoo announced Thursday it will say goodbye to its three remaining chimpanzees as it temporarily shutters ...

Chimps may revise their beliefs in surprisingly human-like ways. Experiments showed they switched choices when presented with stronger clues, demonstrating flexible reasoning. Computational modeling ...

When people talk to each other, their conversations usually include many fast twists. Humans do not naturally talk in Shakespearean soliloquies, but by regularly interrupting and wildly gesticulating.

Engelmann says that from the beginning of the Western intellectual tradition, people thought that only humans are rational.

"In theory, you could break any link." Scientists discover concerning behavioral changes in chimps: 'Could something so small ...

A new review of recent studies shows that chimpanzees use some of the same medicinal plants as humans. In Uganda, the great apes have been observed applying plants with known beneficial phytochemicals ...

Wild chimpanzees have been observed self-medicating their wounds with plants, providing medical aid to other chimps and even removing others from snares left by human hunters, new research suggests.

Ena Onishi, a doctoral student at Japan’s Kyoto University, has spent more than 600 hours watching chimpanzees urinating. She has a good reason for all that peeping, though. She is part of a team of ...