Venezuelan Red Howler (Alouatta seniculus). They inhabit rainforests and mountain forests of Central and South America. The loudest monkey. Morning roar of a red howler. Close-up.© ...

Rhesus macaque monkeys, like the 43 that escaped a South Carolina medical lab this week, are among the most studied animals on the planet. And for more than a century, they have held a mirror to ...

For nearly a century, the carcass of a small reddish-brown monkey from South America gathered dust in a windowless back room of the American Museum of Natural History in New York. Like a morgue corpse ...

FARGO — A pair of critically endangered monkeys are settling into their new home at the Red River Zoo. Critically endangered pied tamarins Noah and Peanut Butter explore their new home Thursday, Aug.

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, ...