Humans and monkeys share more than physical evolutionary heritage -- they share many behavioral traits, too, like the concepts of fairness and... Monkey Business: Fairness Isn't Just A Human Trait ...

It’s a question that has puzzled thinkers for centuries: Are we humans alone in our pursuit of fairness and the frustration we feel when others get what we want? In recent years, evolutionary ...

Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior? Vanessa Crooks Caught in the act! Capuchin monkeys ...

In tourist hotspots around the world, monkeys steal phones, extort snacks, and rule streets like tiny crime bosses. At first glance, they seem clever — but completely immoral. Science tells a more ...

On a remote Panamanian island, researchers have observed for the very first time young male capuchin monkeys stealing howler monkey babies, according to a new study. Since 2017, researchers have used ...