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 ...

The natural world is brutally competitive, and when animals fight over food, territory, or dominance, the results can sometimes escalate far beyond simple skirmishes. Across the planet, scientists and ...

In the mid-1970s, primatologist Jane Goodall witnessed something that changed her opinion of chimpanzees forever: A four-year conflict amongst the... Why a chimp 'civil war' shows how societies ...

The first well-observed "civil war" in wild chimpanzees reveals that shifting social ties can fracture a group, igniting deadly conflict between former friends.

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. Then suddenly, one set charged the ...

In the mid-1970s, more than a decade into her research on chimpanzees in Tanzania's Gombe National Park, the late and legendary primatologist Jane Goodall witnessed something that horrified her. The ...

The Ngogo chimpanzee group in Uganda's Kibale National Park is the largest known community of wild chimpanzees in the world. Over the last decade, it has split into two distinct groups that are ...