Hadzabe tradition is preserved based on means of survival in the Lake Eyasi region of Tanzania were opportunities are scarce and limited. The men do the hunting and the women do the gathering. Unless food is plentiful, it is not normally shared. The tribe base their movements on the migration of the animals and may return to previous locations where dwellings still stand. The Tanzanian government established land dedicated to the Hazabe, but that faltered soon after due to lack of consistent resources. Although the average life span is short, the tradition of hunting and gathering are the means of survival for the Hadzabe.