Yes, they follow a strictly arboreal lifestyle and spend almost their whole life in the upper canopy of the trees, and that they seldom spend their energy to come down to the ground.They follow a 80% vegetative diet and so feed on fruits, leaves, bark, flowers, etc., and all of these are available up in the canopy of the trees in excessive stock, and so they have adapted themselves to a totally arboreal (tree-living) lifestyle.During the daytime, they spend their time foraging and doing other day-to-day activities by climbing and swinging through the high canopy of the trees, and seldom come down to the earth.So, their adaptation to having an arboreal lifestyle aids them to move through a more cluttered habitat, and also safeguards them from a lot of predators that may be waiting for a kill.