Researchers have discovered raccoons to be intrinsically motivated to solve multiple puzzles, even without a food reward.

Humans are regarded as the most intellectually developed, in short intelligent species born on Earth. But do you know, who is ...

Scroll through social media, and you may run into the so-called dog intelligence wall test. In these clips, an owner holds ...

Many years ago, some kind soul wove a pair of sandals for a horse. We will never know the identity of the weaver or the creature the sandals were woven for, but the shoes have endured for well over a ...