This Spider monkey is startled. Several species of Spider monkeys live in the tropical rain forests of Central and South America. Spider Monkeys have long, lanky arms and prehensile tails that enable them to move gracefully from branch to branch and tree to tree. These acrobatic monkeys spend most of their time in the trees, and maintain a powerful grip on branches even though they have no thumbs.
These monkeys are social and gather in groups of up to 2 to 3 dozen animals. During the night the monkeys split up into smaller sleeping parties of a half dozen or fewer. Foraging for food also occurs in smaller groups, and is usually most intense early in the day. Spider monkeys find food in the trees and feast on nuts, fruits, leaves, bird eggs, and spiders. The monkeys can be noisy animals and often communicate with many calls, screeches, barks, and other sounds.