THE world’s biggest chimp clan has exploded into violence as two warring factions kill mothers and children on opposing sides. It is the first time a human-like “civil war” has been observed ...

Hundreds of chimpanzees in Uganda’s Kibale National Park have divided into two groups that are embroiled in a years-long ...

The long-running conflict in a formerly unified community, the second ever observed, adds to Jane Goodall’s studies about a ...

A rare and violent split among chimpanzees in Uganda’s Kibale National Park has led to years of deadly conflict. Now, ...

Field biologists in Uganda have been following and tracking the behaviors of Ngogo chimpanzees for over a decade. What they ...

Using over 30 years of observations, scientists have described for the first time how this "exceedingly rare" split arose.

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

Scientists watched a chimp society collapse-and the cause may rewrite everything we know about human conflict.

A recent study performed on chimpanzees demonstrates that chimpanzees possess cognitive flexibility similar to that of humans. When circumstances or evidence change, chimps appear to do the thing ...

Chimpanzees at Uganda’s Ngamba Island Sanctuary can do what was once considered an exclusively human trait: form expectations on the basis of evidence, but revise them on learning new facts.

Chimpanzees appear to execute Rational Evidence-Weighing in complex decision-making tasks. The experiments conducted demonstrated that chimps changed their minds when presented with stronger evidence.