Without solution, in the next ten years half of primates can disappear. This was announced by the first comprehensive investigation into the state of primates in the last twelve years. 22 of the International Society of Primatology. In the course of the conference it was revealed that two factors determined this great extinction are the destruction of the habitat, an primatologists, and one that researchers did not expect: hunting these animals. They seem to kill a lot both to eat and to be a component of traditional medicine.