Native Brazilians from the Bororo tribe perform a ritual during a break in the Indigenous Nations Games...
Native Brazilians from the Bororo tribe perform a ritual during a break in the Indigenous Nations Games in Porto Nacional, in the Amazonian state of Tocantins, November 11, 2011. Some 1,300 members of different ethnic groups from around Brazil are competing in the event that lasts through November 12. REUTERS/Paulo Santos (BRAZIL - Tags: SPORT SOCIETY)