A capuchin named Joker started the apparent trend, leading researchers to suspect "there was something a little quirky about ...

Plus, researchers could hear adult howler monkeys calling back and forth with the infants, who would sometimes try to crawl ...

Researchers have documented an unusual and alarming trend among white-faced capuchin monkeys on Jicarón Island, Panama. Young ...

Capuchins are also known for developing odd social rituals across their range. Scientists studying mainland populations have ...

Cameras on a remote island captured how a novel social tradition originated and spread. Off the coast of Panama, on a remote ...

White-faced capuchin monkeys on Jicarón Island have started abducting baby howler monkeys, surprised scientists report. It’s ...

A rare cultural behavior spreads among young male capuchins and baby howlers, raising questions about animal traditions and ...

Monkeys have been known to “adopt” abandoned infants of the same ... the capuchins toted around the baby howlers for days with few interactions — no play, minimal aggression and little ...

On Jicarón Island, white-faced capuchin monkeys ( Cebus capucinus imitator) rule, unmolested by predators. In their peace, ...

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.