Also known as muriqui, the woolly spider monkey is the main primate in the Americas as well as one of the rarest in the world. With a prehensile (grasping) tail and long finger that they hook over brushwood, they move backward and forward gymnastically through the forest canopy.
Woolly spider monkeys use most of their time high in the canopy and they drink water that collects in the leaves. They live peacefully together in troops of 5 to 25, generally having an equal number of males and females. When reaching maturity, females leave their birth troop to join another, while males tend to stay with their birth troop.