Yawalapiti men watch wrestling matches as part of this year's 'quarup,' a ritual held over several days to honour in death a person of great importance to them, in the Xingu National Park, Mato Grosso State, August 19, 2012. This year the Yawalapiti tribe honoured 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. Picture taken August 19, 2012. REUTERS/Ueslei Marcelino (BRAZIL - Tags: SOCIETY ENVIRONMENT) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. ATTENTION EDITORS - PICTURE 30 OF 37 FOR THE PACKAGE 'THE YAWALAPITI QUARUP RITUAL' Published: Srp. 29, 2012, 10:21 dop.