Sammy the chimp celebrates his 47th birthday with style.

Few figures in history have done more to change our understanding of the natural world. We celebrate Jane Goodall’s ...

A deadly conflict between rival groups of chimpanzees in Uganda led to comprehensive victory and a bounty of territory and ...

A chimpanzee got loose inside the Indianapolis Zoo on Friday. According to CBS4 in Indianapolis, guests were asked to head back to their cars or shelter in secure locations.An Indianapolis Fire ...

A chimpanzee broke out of her enclosure at the Indianapolis Zoo Friday morning, sparking a lockdown that trapped dozens of visitors — including 37 schoolchildren on a field trip. Jake Oakman, the ...

A new study has the clearest evidence yet that territorial expansion after lethal conflict can directly boost reproductive ...

INDIANAPOLIS — A chimpanzee was on the loose inside the Indianapolis Zoo on Friday as guests were asked to head back to their cars or shelter in secure locations. An Indianapolis Fire Department run ...

Humans may have evolved to go to war because it led to an increase in children, a study suggests. Anthropologists following ...

WARNING: Graphic and distressing content. St. James Davis was savagely attacked by two chimps at the animal sanctuary where ...

The Ngogo chimpanzees of Uganda's Kibale National Park have long been known for violent clashes with neighboring groups, often resulting in deaths—a phenomenon sometimes described as "chimpanzee ...

Fifteen years ago, researchers working deep in Uganda's Kibale National Park watched something unsettling unfold. The Ngogo ...