Hammar tribes are among one the tribal people living in the south Omo valley. They are a semi- pastoralist people and known by their bull jumping and Evangadi dancing ceremony. A young boys jump over back of 7-15 bulls without falling down and the one who jumps all bulls will marry to the woman of his choice and he will also joins the ranks of Maza, men group who completed a jumping ceremony. A person must be jump castrated male cattle in order to be successful. They have also night dancing ceremony called Evangadi in which men and women come together at night and dance.
The Hammar usually trade with their neighbors and cultivat sorghum and maize as they do not grow it themselves. They are also known particularly for their remarkable hairstyles. The women mix together ochre, water and a binding resin, rub the mixture into their hair, and then twist strands again and again to create coppery-colored tresses known as goscha. These are a sign of health and welfare. The Hammar tribe is an indigenous group of people in Africa. They are also considered masters of body decoration, every adornment has an important symbolic significance; earrings denote the number of wives a man has. The women wear bead necklaces, iron coils around their arms, and decorate their skin with cowry shells. The iron torques’s around their necks are known as Ensente and are worn by married or engaged women only. They indicate the wealth and prestige of the woman’s husband. Young, unmarried girls wear a metal plate in their hair that looks like a bit platypus bill. The iron bracelets and armlets are an indication of the wealth and social standing of the young girl’s family. When she gets married, she must remove the jeweler; it is the first gift she makes to her new family.