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

Parade Pets and Yahoo may earn commission from links in this article. One of the most fun places to take the kids on a day off is the zoo. Always an exciting experience for the entire family, zoos ...

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 ...

The "big truck, small man" phenomenon is also seen in the animal kingdom. The loudest howler monkeys were found to have the smallest packages. Hyoid bone size, which is responsible for vocalizations, ...

Discover amazing animal secrets that will blow your mind! Learn how starfish move like heads, howler monkeys' incredible loud calls, and unique dog noses. Dive into the world of dolphins with their ...

13.3-million–13.6 million-year-old fossils from an extinct relative of the howler monkey show signs of being the first leaf-eating primate in South and Central America. Fossils from jaws of Stirtonia ...

A young male nicknamed Joker was probably the first to start carrying a howler monkey baby on his back for days on end. Then a group of other young males started to copy him. Here a white-faced ...

Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior? Vanessa Crooks Caught in the act! Capuchin monkeys ...

Findings from a study that monitored a group in Carlos Botelho State Park in São Paulo, Brazil, help shed light on the habitat use of this vulnerable species For example, warmer and longer days ...

One of the most fun places to take the kids on a day off is the zoo. Always an exciting experience for the entire family, zoos give visitors a chance to get an up-close look at their favorite wild ...