The Hamers are a people of East Africa living in the south-western Ethiopia, in a fertile area of the Omo Valley. The Hamers are mainly farmers, livestock takes a very important part in their culture. They are semi-nomadic. They follow a route marked out by their ancestors, with many stops. During their long pauses, if the season allow it, they begin to agriculture, especially the cultivation of sorghum. The cattle is the main wealth of Hamer. The higher the flock, the higher the social status of the owners. The Hamers have developed a vocabulary to describe each color, every shape, size and coat of their livestock.