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

A long-running conflict in a Ugandan park may provide clues to the origins of human warfare, and how to avoid it.

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

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

"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 ...

Learn how the world’s largest known chimpanzee group split in Kibale National Park, Uganda, and why the divide led to deadly ...

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

Why the Latest Science Leads Us to a New Theory of Human Nature, by Jonathan Leaf (Bombardier, 320 pp., $21) Ever since Darwin, biologists have believed that much could be learned about human nature ...

Chimpanzees in Uganda use plants to treat wounds and help injured companions, revealing potential roots of human medicine.

Chimps’ love for crystals could help explain our ancestors’ fascination with the shiny stones. The forerunners of modern humans collected crystals for which they had no apparent use, say scientists.