It’s not unusual for chimpanzees to fight. Chimpanzee society is naturally aggressive and even violent. However, visitors at the Los Angeles Zoo probably didn’t expect this chimpanzee brawl to look ...

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 ...

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." ...

Since 1995, scientists have tracked a huge group of chimpanzees living in the forests of Uganda. The sustained research, featured in the 2023 documentary “Chimp Empire,” has led to profound insights ...

Charla Nash arrived at Sandy Herold’s house as she usually did. They’d been close friends for years. Little did she know this visit would change her life forever. As soon as Nash stepped inside, ...