These discoveries have bridged the gap between Africa’s primate ancestors and the diverse array of New World monkeys thriving today, including capuchins, howler monkeys and tamarins. However ...

Scientists have found a new monkey species! That's the good news. The bad news is that only a couple of hundred are left.

Koko the chimpanzee was a happy-go-lucky fellow, but he couldn't shake one nagging thought: his lack of a tail.

The monthslong search for 43 rhesus macaque monkeys that escaped from a South Carolina research facility an hour west of Charleston came to a close Friday after the last of the fugitive primates ...