Higher primates can be divided into 2 groups: flat-nosed and narrow-nosed monkeys. To take the last and we the people. Nostrils we are directed forward and downward, the partition between them narrow. About the same we will see the monkeys, macaques, baboons and other monkeys that live in Africa and Asia. The American monkeys nostrils directed to the side, and the partition between them wide, and why they are named flat-nosed. To flat-nosed include marmoset, orangutans and other apes.
Only among the higher primates night monkey - gurukuli. She is a small - body Length from 24 to 47 inches, ears are not visible - they are hidden in the fur, but his eyes huge in the Afternoon resting and at night engaged in the toilet, marks territory, hunt all animals, from spiders to birds, looking for edible plants. It is clear why it is also called the owl monkey.