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

New study describes what may be the first case of a unified community of chimps turning on itself ...

The lethal conflict is the first clear example of a ferocious fission in a wild chimpanzee community – which fractured into ...

The first well-observed "civil war" in wild chimpanzees reveals that shifting social ties alone can fracture a group, ...

"I've known many of them for their entire lives. And now I'm watching them kill each other," says one researcher.

Researchers who observed a murderous conflict unfolding in a once-unified group of wild chimpanzees say there are parallels ...

But the case was considered an anomaly, although there is genetic evidence suggesting this kind of split is a rare event ...

A decades-long study reveals hundreds of chimpanzees waging a violent and deadly conflict against their former friends in ...

Scientists say shifting social ties can break up a once unified group of apes and ignite sustained, deadly conflict among former allies.

The largest group of wild chimpanzees known to scientists has permanently split into warring factions, with at least 24 ...

The world’s largest-known group of chimpanzees split into two factions that are now engaged in deadly combat ...