Add Yahoo as a preferred source to see more of our stories on Google. Now, the monkeys have taken their shenanigans a step further. They have been caught doing something that scientists had never seen ...

Hear the booming cries that gave the howler its name. Learn just what these vocal monkeys may be trying to say.

Animal abduction: Biologists documented five male capuchin monkeys carrying at least eleven different infant howler monkeys -- a behavior never before seen in wild primates. Rise and spread: The ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason. By Elizabeth Landau See more of our coverage in your search ...

There’s a serious case of stranger danger unfolding on an island off the coast of Panama. A gang of five juvenile capuchin monkeys living on Jicarón Island has started abducting baby howler monkeys, ...

Howler monkeys are relatively small primates known for their incredibly loud, low-frequency roars that sound as if they come from a much larger creature. This is useful in the animal kingdom because ...