Wild chimpanzees in Uganda split into two separate communities and later engaged in deadly attacks against each other.

Scientists have identified dozens of previously overlooked cultural behaviors in wild chimpanzees, suggesting that the great ...

AMES, Iowa – Iowa State University Anthropology Professor Jill Pruetz long suspected that man-made changes influenced the aggressive behavior researchers have observed among chimpanzees. However, her ...

It’s not unusual for chimpanzees to fight. Chimpanzee society is naturally aggressive and even violent. However, visitors at the Los Angeles Zoo probably didn’t expect this chimpanzee brawl to look ...

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This contrast has frequently been used to explain different sides of human nature.

A new study from Uganda shows that chimpanzee culture and learning are much more complex than scientists once believed.

Researchers have documented a permanent split between the largest-known group of wild chimpanzees, which erupted into a lethal civil war over the past several years — findings that could help ...

Great apes appear to build friendships much like humans do. By studying grooming behavior, researchers discovered that ...

Is the instinct to spend more time with close companions and naturally drift from acquaintances innate? A study reveals that ...