Since 1995, scientists have kept a watchful eye on the Ngogo chimpanzees in Uganda’s Kibale National Park. For around two decades, the wild apes coalesced as a unified group that mated and hunted ...

Larger, more tolerant chimpanzee groups manage shared resources more effectively and exhibit less aggressive competition than smaller, more competitive groups. Tolerance functions as a group-level ...

In a shocking twist of nature, scientists have documented a rare phenomenon in the wild: a violent split within a single group of chimpanzees. The conflict is unfolding in Uganda's Kibale National ...

When we think about animals fighting, we often think that the fight happens in the heat of the moment. But scientists say the real story begins much earlier.

Bonobos and chimpanzees use friendly physical contact to manage social stress before meals. New research shows both species ...