The Magdalena River separates identical nocturnal monkeys and reveals genetic differences that are reshaping conservation ...

For decades, monkeys from the Colombian Amazon have been used in biomedical research and returned to the wild—now researchers want to know what happens after that. Of the 11 species of Night Monkeys ...

Monkeys are one of the most varied types of creatures in the world. In fact, some species are so extraordinary that they can never fail to amaze you because of their amazing physical characteristics ...