Labels:text | poster | skull | animal | mammal OCR: OLD WORLD NEW WORLD Baboon Marmoset Silky Tamarin Macaque Monkeys belong to two groups. New World monkeys were trapped in south America when the continents drifted apart. Their most typical feature is a grasping prehensile tail. Old World Monkeys live in Africa and Asia. They have larger brains and do not have grasping tails.