A Yawalapiti boy dips his head into the Xingu River in the Xingu National Park

A Yawalapiti boy dips his head into the Xingu River in the Xingu National Park, Mato Grosso State, May 9, 2012. In August the Yawalapiti tribe held the Quarup, which is a ritual held over several days to honor in death a person of great importance to them. This year the Quarup honored two people - a Yawalapiti Indian who they consider a great leader, and Darcy Ribeiro, a well-known author, anthropologist and politician known for focusing on the relationship between native peoples and education in Brazil