Over 30 million years ago, monkeys crossed the Atlantic on rafts. Researchers believe they made the 1,000-mile journey on ...

Permanent mother-infant separation prior to natural weaning is a common husbandry practice in monkey breeding colonies. In the United States, such colonies have been established in all eight Regional ...

These vocal primates are the biggest of all the New World monkeys. Unlike Old World monkeys, howlers and other New World species have wide, side-opening nostrils and no pads on their rumps.

For instance, has evolution proceeded differently in New World monkeys versus Old World monkeys? New World monkeys last shared a common ancestor with Old World monkeys about 30-50 mya, but the ...

A team of researchers from the Tokyo University of Science (Japan), led by Koichi Watashi, has discovered why Old World monkeys, such as the crab-eating macaque, naturally display HBV resistance, ...