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

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 ...

New research suggests chimpanzees can rethink their choices when new evidence emerges, a hallmark of human-like reasoning.

If insect applications prove to be medicinal, this adds to the importance of safeguarding chimpanzees and their habitats ...

Chimpanzees living in a sanctuary in Africa have developed a “fashion trend” for dangling blades of grass or sticks from their ear holes and their behinds, a new study shows. In 2010, researchers ...

Chimpanzees are more likely to engage in play or groom each other if they see others performing these social behaviors first, researchers report. Chimpanzees are more likely to engage in play or groom ...

If there was ever any doubt about the impact Jane Goodall had on the field of animal research, one Instagram video explains ...

ANIMALS respond to injury in many ways. So far, evidence for animals tending wounds with biologically active materials is rare. Yet, a recent study of an orangutan treating a wound with a medicinal ...

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 ...

A survey measuring the ethanol levels in fruits consumed by chimpanzees suggests that these animals are regularly exposed to alcohol. Researchers from the, Berkeley, conducted the first direct measure ...