The scientists nicknamed one capuchin kidnapper Joker because the scar at the side of its mouth reminded them of the "Batman" ...

A baby howler monkey clung to the back of an older male monkey, its tiny fingers grasping fur. But they're not related and ...

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

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.” ...

Scientists spotted surprising evidence of what they describe as monkey kidnappings. The capuchin monkeys were seen carrying ...

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 group of white-faced capuchins on a remote island have started stealing infants from another primate species, and ...

Scientists on Panama's Jicarón Island were mystified by photos and videos of young male capuchins carrying howler monkeys on their backs for days at a time ...

Observations of Coiba's tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the ...

By Shreya Dasgupta On a remote Panamanian island, researchers have observed for the very first time young male capuchin ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason.

Young male capuchins have developed a strange trend of acquiring baby howler monkeys. It doesn't end well for the babies.