Ateles geoffroyi vellerasus
Animal Class: Mammals
Length: 14 to 26 inches
Weight: 13.25 pounds
Life Span: 22 years in the wild
Diet: Omnivore; fruit, nuts, and leaves
Habitat: Tropical jungle and rainforest
Spider Monkeys have long, lanky arms and prehensile (grasping) tails that enable them to move gracefully from branch to branch and tree to tree. These nimble monkeys spend most of their time aloft, and maintain a powerful grip on branches even though they have no thumbs.
These New World primates are social and gather in groups of up to two- or three-dozen animals. At night, these groups split up into smaller sleeping parties of a half dozen or fewer. Foraging also occurs in smaller groups, and is usually most intense early in the day. Spider monkeys find food in the treetops and feast on nuts, fruits, leaves, bird eggs, and spiders. They can be noisy animals and often communicate with many calls, screeches, barks, and other sounds.