Introduction to the Air Force: The so-called "air force" of monkeys in Longhu Mountain refers to the group of monkeys in the trees. The area occupied by the "Air Force" is high in mountains and densely forested, and they often "fly over rocks and walk over branches." The monkey's brain is developed, the eye sockets face forward, the toes (fingers) of the hands and feet are separated, the monkey's thumb is flexible, and most of the monkeys can hold it with the other toes. The monkey climbs trees very nimbly, and its long arms make it easy to climb up and down trees.