One of the main divisions in Mursi family-life is that of clans. Mursi people naturally tend to clump together as clans based on their ancestors' names. These clans are usually very tightly bound and treat each other close like family. These clans tend to become pretty large and can consist of up to fifty men and are so tightly bound that, in the case of an infertile Mursi man, he will ask one of his clansmen to impregnate his wife on his behalf. The infertile man will still be considered the child's legal father, and the biological father will have no role in the child's name or life outside of clansmen roles.
Not only are these Mursi clans tightly bound, but the relationship with family is also very close. A husband and wife are not only married by name, but they become a part of each others' families and clans. A husband becomes like a son to his mother-in-law and vice versa. Clans become intertwined through marriage, which only adds to the tight bonds between the Mursi people across the different clans and family names.
Polygamy is a normal thing that is found in Mursi marriage. Men are allowed to wed multiple women, however, it is scarcely seen in the average Mursi's life. This is because the concept of marriage, to a Mursi man, is something of a great debt to his wife's family. The Mursi use something called Bridewealth-a sort of alternative to dowry. The husband must give the wife's family compensation for taking their daughter's labor and fertility. When getting married, a Mursi man is indebted to the wife and her family for the next three generations.
Lise Jorgenson, Stine 2011Ethnographic Reflections On Marriage In Mursi. Ebook. 1st edition. Trondheim: NTNU. http://www.diva-portal.org/smash/get/diva2:442482/FULLTEXT01.pdf, accessed June 3 , 2015.