Momo the monkey, with sprint speeds up to 30 mph, nabbed after escape in Indianapolis Earlier this week, Momo gave an area resident the shock of her life when he got on the hood of a car: 'I think ...

Scientists studying camera trap footage from Jicarón Island spotted something unusual: a capuchin monkey carrying an infant howler monkey on his back. Now, they’re trying to learn what it means.

A young male nicknamed Joker was probably the first to start carrying a howler monkey baby on his back for days on end. Then a group of other young males started to copy him.

Monkey-Nappers! A Group of Capuchin Monkeys Caught on Camera With Abducted Baby Howler Monkeys. Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant ...