Video footage shows male capuchin monkeys carrying at least 11 howler monkey babies between 2022 and 2023. The monkeys' ...

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

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

Scientists have found surprising video evidence of what they call monkey kidnappings – and they’re trying to figure out why.

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

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

A young howler monkey was seen clinging to the back of an older male monkey, tightly gripping its fur.

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.

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

In 2022 and 2023, several male Capuchin monkeys in Panama were spotted with babies on their backs, which is not that unusual ...

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

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