The black-handed guenon is the primate adapted to semi-water habit of life. These animals spend cool winter in dry forests far from coast. But in the summer when water gets warm and at the coast there are many edible sea animals and seaweed, these monkeys go down from dry forests to the ocean and eat gifts of the sea. The monkey can swim perfectly, but this skill is not inborn - cubs study to swim at first two years of life. These species of primates is large-sized one - weight of the adult male is up to 12 kg and more, females - up to 10 kg. It is remarkable by contrast coloring of the body: the wool at adult animals is white with brownish shade, on extremities it gradually darkens: hands and feet are covered with dark-brown wool. The tail (it is longer, than body and head) also darkens t