Chimpanzees and bonobos maintain tight inner circles of preferred grooming partners inside their wider social networks, ...

Great apes appear to build friendships much like humans do. By studying grooming behavior, researchers discovered that ...

Chimpanzees may look like smaller, hairier versions of humans, but when a full-grown chimp decides to throw its weight around, the difference is stark. Their strength is not just a gym-rat talking ...

Add Yahoo as a preferred source to see more of our stories on Google. A Congolese Army soldier holds a baby chimpanzee while manning a checkpoint in the entrance to the provincial capital of Goma, ...

Researchers collected and analyzed urine from chimpanzees in a Ugandan forest after they'd eaten fermented fruit to determine how much alcohol they'd consumed. (Sharifah Namaganda) For 11 days in late ...

Walking through the savanna-woodland landscape of Boé National Park, Guinea-Bissau, you might encounter a tree covered in ...