The Maasai people live in southern Kenya and northern Tanzania. The society has a strong patriarchal structure and deep-rooted traditions. Up until ten years ago, Maasai warriors had to kill a lion as a rite of passage to get married. Now, many Maasai groups have moved away from that practice for conservation means. The Maasai place high value on their livestock and cattle, with their housing structures literally centered around their cows and goats. Cattle are the primary source of food, and nearly all of the animal, including its blood, are used.