A once large and peaceful group of chimpanzees in the western forests of Uganda has now split into two, causing a rare “civil ...

WASHINGTON — Bonobos for years have had the reputation of being the cool hippies of the simian world, with a "make love, not war" ethos, in contrast to their belligerent cousins, the chimpanzees. But ...

An unusually large troop of chimpanzees displayed cooperation and social cohesion for decades, until something shifted and ...

Chimpanzees that had once formed a cohesive community in Uganda split into factions and turned violent, according to a new ...

Bonobos may be one of our closest cousins but chimpanzees dominated research after Jane Goodall discovered in the 1960s that chimpanzees make and use tools. This finding paved the way for research on ...

Researchers have documented a permanent split between the largest-known group of wild chimpanzees, which erupted into a ...

A chimpanzee community in Uganda’s Kibale National Park that split into rival factions later attacked former allies in what ...