Howlers are New World monkeys found in tropical Central and South America. They are aptly named for their cacophonous cries. When a number of howlers let loose their lungs in concert, often at ...

This story appears in the August 2011 issue of National Geographic magazine ... in New Delhi to scare off aggressive rhesus monkeys and other wild animals that might roam into public spaces ...

What is a woolly monkey? An animal called a woolly monkey seems like it should live in the frozen north, not the sweltering Amazon Basin. But the thick coat of fur covering these large primates ...

This story appears in the February 2011 issue of National Geographic magazine ... living in territorial bands that can top 400 animals, are being squeezed again by logging, human settlement ...

This story appears in the November 2014 issue of National Geographic magazine ... As few as 6,000 of the endangered monkeys remain—with between 4,000 and 5,000 in Morocco.