The only truly nocturnal primate is found in the northern part of South America. The owl monkey is a small creature with large eyes and usually weighs under 2 lbs. Its hind legs are longer than its arms which allows for leaping easily from tree to tree. It is believed that they have evolved from diurnal relatives for various reasons. One being they can adapt to new environment situations. Depending on the amount of danger due to predators during the day, they can become partially diurnal. Even so they are most active during full moons. These monkeys rely on olfaction, vision, and touch for communication as well as verbal.

Size: 2 1/4"L, 1 1/2"W, 1 3/4"H
Origin: South America

Class:Mammalia Order:Primate Family: Cebidae