The owl monkey, also known as the Aotus, is a small primate native to the forests of Central and South America. These nocturnal monkeys are characterized by their large, round eyes, which help them see in low light. They have a distinctive coat that varies in color, typically ranging from gray to brown, and they possess a long tail that is not prehensile. Owl monkeys are social animals, often living in small family groups. They primarily feed on fruits, insects, and small vertebrates. Unlike many other primates, owl monkeys are unique in that they are the only truly nocturnal monkeys, adapting their behavior and diet to thrive in the dark.