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

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 ...

There are over 300 species of monkeys divided into two groups, the Old World, of which there are over 170 species, and the New World, of which there are over 160 species. Of these species ...

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 ...