Chimpanzees from the Western group attacking members of the Central group in 2019. Aaron Sandel Since 1995, scientists have kept a watchful eye on the Ngogo chimpanzees in Uganda’s Kibale National ...

For years, two sets of chimpanzees lived as one in Uganda’s Kibale National Park — grooming, interacting and patrolling their territory in a cohesive community. Subscribe to read this story ad-free ...

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

Chimpanzees are one of the closest relatives to humans, but they are also significantly stronger, with some estimates suggesting several times the strength of an average person. Living in complex ...

The clashes, known as the Ngogo conflict, are the focus of a major study published in April in the journal Science, based on three decades of research. Researchers say the violence grew out of a ...