It’s like handing puzzles to expert problem-solvers.

More than 59 different primate species have been observed participating in some kind of same-sex behaviors, making it extremely common.

Same-sex behavior is widespread in primates and may help strengthen social bonds and improve survival under challenging ...

What did the first humans actually look like? This video traces our evolutionary story back to a tiny, squirrel-like primate that started it all. You’ll see how millions of years shaped the human face ...

While the majority of animals (humans included) roam the Earth, some of nature’s most fascinating creatures spend their lives ...

Some animal societies are ruled by despots with an iron fist, while others seem naturally egalitarian – and they all have ...

A pet cow has learned to scratch herself with a broom, showing creative problem-solving skills that make it harder to ignore ...

Koalas look like they belong in a children's book, but spend enough time around one, and you'll realize—they're not exactly ...

Which is why I found myself stepping out of a small canoe on the Tapajós River in Brazil’s central Amazon to collect the remnants of the most recent meal of the endangered red-nosed cuxiu monkey ( ...

A pet cow named Veronika uses a tool in a surprisingly sophisticated way—possibly because she has been allowed to live her ...

Thousands of years before the invention of compasses or sails, prehistoric peoples crossed oceans to reach remote lands like ...