Owl monkeys, also known as Aotus, are small primates native to the forests of Central and South America. They are unique among monkeys because they are nocturnal, meaning they are active at night. Owl monkeys have large, round eyes that help them see in low light, and their fur is typically gray or brown, providing camouflage in their natural habitat. These monkeys are social animals, often living in small family groups. They primarily eat fruits, leaves, and insects, using their strong sense of smell to find food. Owl monkeys are also known for their vocalizations, which help them communicate with each other in the dark.