Young boys from the Mursi tribe walk on stilts in Ethiopia's southern Omo Valley region, near Jinka, on September 22, 2016. The Mursi are a Nilotic pastoralist ethnic group in Ethiopia. The construction of the Gibe III dam, the third largest hydroelectric plant in Africa, and large areas of very "thirsty" cotton and sugar plantations and factories along the Omo river are impacting heavily on the lives of tribes living in the Omo Valley who depend on the river for their survival and way of life. Human rights groups fear for the future of the tribes if they are forced to scatter, give up traditional ways through loss of land or ability to keep cattle as globalisation and development increases. / AFP PHOTO / CARL DE SOUZA