Add Yahoo as a preferred source to see more of our stories on Google. Just like humans, chimpanzees are adept at problem-solving. If you hang a banana out of reach and give a chimp some boxes (as ...

A chimpanzee surprised onlookers by picking up a dropped toy and returning it to a visitor, highlighting the animal's ...

Intelligence comes in many forms, and some animals possess abilities that rival our own in surprising ways. Chimpanzees use ...

For new discoveries, everyday mysteries, and the science behind the headlines, follow NPR's ShortWave podcast . Over a century ago, the German psychologist Wolfgang Köhler conducted what became a ...