Chimpanzees consistently choose crystals over ordinary rocks, suggesting a curiosity that may echo early humans.

Chimpanzee experiments suggest early humans were likely fascinated by crystals because of their unique transparency and ...

By Will Dunham WASHINGTON, March 13 (Reuters) - Bonobos for years have had the reputation of being the cool hippies of the ...

Aden Kahr Humans have long been fascinated by crystals. Archaeological evidence suggests our ancestors have treasured small ...

Chimpanzees can pick out crystals from a pile of ordinary rocks, handle them with visible care, and even hold them up to peer ...

The stereotype of violent chimpanzees and peaceful bonobos may be wrong, according to new research comparing aggression in both apes.

For decades, scientists believed that bonobos, one of our closest living relatives, were among the most peaceful primates.

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This ...

Chimpanzees living in a sanctuary in Africa have developed a “fashion trend” for dangling blades of grass or sticks from their ear holes and their behinds, a new study shows. In 2010, researchers ...

Add Yahoo as a preferred source to see more of our stories on Google. Val, an adult male chimpanzee, demonstrates the ‘grass-in-ear’ behavior. - Jake Brooker/Chimfunshi Wildlife Orphanage Trust ...