Dunn’s team analyzed the biological “budget” of these primates and found a direct negative correlation: males with large ...

There is just something about watching baby animals munch away that is oh so satisfying and incredibly adorable. Just take the precious little baby marmoset in this video, for instance. They are a ...

A capuchin named Joker started the apparent trend, leading researchers to suspect "there was something a little quirky about him, or that he was kind of lonely in a way.” Reading time 3 minutes A ...

A group of male capuchin monkeys kidnapped baby howler monkeys – a different species – on a small island of Panama. Video shows the howler monkeys clinging to the male capuchin monkeys’ backs, but the ...