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 ...

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 ...

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