| Spider monkeys stay high in the forest canopy and seldom come down to the ground. They are noisy, active, and social, swinging through the trees hand-over-hand and leaping from tree to tree when they are playing and feeding. At night, groups of 15 to 40 monkeys gather to sleep in tall trees. Their very long tails serve as extra hands, arms, or legs. The underside of the tip of the tail is naked and sensitive, and can be used to hang onto a branch, pick up a piece of fruit, or break off a dead branch to drop on an intruder. Spider monkeys breed every two to four years, giving birth to just one baby after a 7-month gestation. The young are black, but as adults, the color of their fur will vary from location to location, from mostly black to mostly blond to mostly yellowish-orange.
Head and Body: 415-640 mm; Tail: 520-795 mm
Beiträge zur Zoologie und vergleichenden Anatomie, Frankfurt. 1:26.
Mammal Species of the World (opens in a new window).