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.

The Rated Red crew playfully debates which wild animals you might actually stand a chance against in a fight.

Returning rescued slow lorises to the wild may sound like a conservation success, but a new study shows it can turn deadly. Researchers tracked nine released animals and found that only two survived, ...

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