The conflict is unfolding in Uganda's Kibale National Park, where a once-unified group has split into rival factions that ...

The Ngogo chimpanzees in Uganda have divided themselves into two main factions, and dozens of deaths have been recorded since ...

A long-term study of the world's largest known community of chimpanzees has documented a rare event: what the researchers describe as the primate equivalent of a "civil war." ...

Researchers observed the dynamic shift from a cohesive society to two opposing groups, followed by years of lethal violence.

Research at Uganda's Kibale National Park reveals chimpanzees engage in prolonged, organized warfare, challenging the notion ...

Deep in the rainforests of Uganda, scientists have watched the largest known group of wild chimpanzees (Pan troglodytes) turn ...

Since 1995, scientists have tracked a huge group of chimpanzees living in the forests of Uganda. The sustained research, ...

The author John Steinbeck wrote “All war is a symptom of man’s failure as a thinking animal.” But are we the only species to ...

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