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

biting tufts of fur off of each other, drumming on a partner’s belly or back, and sticking hands in other capuchins’ mouths, says Perry. Howler infant number 10 on the back of a subadult ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason. By Elizabeth Landau Capuchin monkeys don’t generally hang ...

WASHINGTON (AP) — A baby howler monkey clung to the back of an older male monkey, its tiny fingers grasping fur. But they’re ... small island of Panama. The capuchin monkeys were seen carrying ...

A gang of five juvenile capuchin monkeys living on Jicarón Island has started abducting baby howler monkeys, researchers report May 19 in Current Biology. This bizarre fad, which has no clear ...