Add Yahoo as a preferred source to see more of our stories on Google. This photo provided by researchers shows a baby howler monkey clinging onto a young adult male capuchin monkey on Jicarón Island, ...

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

The red howler monkey in Assassin's Creed Black Flag Resynced is key to better hunting, sneaking, and fighting. Not that the monkeys will teach you anything, but you can use their pelts to craft the ...

Add Yahoo as a preferred source to see more of our stories on Google. Howler infant number 5 on the back of a juvenile capuchin carrier, who is using stone tools at an anvil site in a stream bed.

On a remote, human-free island off the coast of Panama, something strange is going on: capuchin monkeys are kidnapping baby howler monkeys. And they’re not eating them, hurting them, or raising them.

MEXICO CITY — It’s so hot in Mexico that howler monkeys are falling dead from the trees. At least 138 of the midsize primates, who are known for their roaring vocal calls, were found dead in the Gulf ...

Thirteen million years ago, a medium-sized monkey known for guarding its territory among the treetops with a fearsome "howl" started doing something new. This monkey, one of the oldest known ancestors ...

The daily movements of brown howler monkeys (Alouatta guariba) in the forest are determined by an interplay of environmental, behavioral and social factors. This is one of the conclusions of a study ...

Dating is tough. We all know that. To attract the right mate, or any mate at all, you have to stand out from the crowd. Maybe your best quality is your sense of humor, or your twinkling eyes, or your ...

The Smithsonian's National Zoo is inviting its Facebook fans to answer the call of the wild by naming one of the Small Mammal House's loudest and most charismatic critters: a baby black howler monkey ...

MEXICO CITY (AP) — It’s so hot in Mexico that howler monkeys are falling dead from the trees. At least 138 of the midsize primates, who are known for their roaring vocal calls, were found dead in the ...