The Mursi tribe is one of the wealthiest of the Omo Valley tribes, due to the number of cattle it owns. Mursi people have are known for their tall, strong bodies and aggressive behaviour. The Mursi Men often wear a piece of cloth tied at the shoulder; women wear a similar custom but of cloth or goatskin. All Mursi men and women decorate their heads with drawings and inscriptions after shaving their hair. For beauty purposes, Mursi women place large plates of clay in their lower lips and wooden plates in the ears or tattoo their chests. As for Men of the tribe, tattoo marks on the left shoulders are a sign of reaching puberty.