When people think of intelligent animals, they immediately think of dolphins, elephants, and chimpanzees. But one of the most intelligent problem-solvers is hiding deep beneath the surface, called the ...

California's sea otters have become surprising environmental champions by tackling a destructive invasive species wreaking havoc in Elkhorn Slough. These adorable marine mammals have naturally solved ...

Raccoons continued exploring a multi-access puzzle box long after finding the treat, showing their urban success may stem from their drive to learn. Urban environments are one big playground, at least ...