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." ...

The Ngogo chimpanzees in Uganda have divided themselves into two main factions, and dozens of deaths have been recorded since the split in 2018. A new study details the unprecedented violence, which c ...

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

In the mid-1970s, primatologist Jane Goodall witnessed something that changed her opinion of chimpanzees forever: A four-year ...

For more than two decades, the Ngogo chimpanzee community in Uganda’s Kibale National Park was the largest ever recorded, a sprawling society of roughly 200 individuals who groomed each other, hunted ...