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

Despite being one of the most cooperative species on the planet, humans routinely fail to manage shared resources sustainably. We overfish from the oceans, burn fossil fuels, and over-prescribe ...

Bumblebees figured out how to get to an out-of-reach reward in a new study, proving they can problem-solve on the fly. (Mikko Törmänen/University of Oulu) For new discoveries, everyday mysteries, and ...