Outbreaks of violence between chimpanzees have sparked fierce debate online about the origins of war in humans ...

Researchers say that while territorial disputes between animal groups are well known, wars within such groups are extremely rare ...

I’ve been “surrounded” by apes and monkeys for several weeks now as I read up on primate behavior as part of a UP course ...

New study describes what may be the first case of a unified community of chimps turning on itself ...

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 chimp community in Kibale National Park has split into rival groups, with one attacking the other as researchers—including some in Arizona—search for answers.

An unusually large troop of chimpanzees displayed cooperation and social cohesion for decades, until something shifted and ...

These chimps used to be friends.

The once close-knit community of Ngogo chimpanzees have been at loggerheads for the last eight years.

UT researchers found the largest known group of wild chimpanzees has permanently split into two, according to an April 9 ...

These animals used to be friends, but now they attack each other on sight.