New World monkeys are a group of primates found primarily in Central and South America. They belong to the infraorder Platyrrhini and are characterized by their flat noses, prehensile tails, and smaller size compared to Old World monkeys. Common examples include the capuchin monkey and howler monkey. These monkeys typically live in trees and are known for their social behavior, often forming large groups. They have a diverse diet that includes fruits, leaves, and insects. New World monkeys are also notable for their varied vocalizations, which they use to communicate with each other in their forest habitats.