An indigenous man from the Tabajara tribe is seen in Tocantins river before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people from the Guarani Kaiowa tribe are seen in Tocantins river before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





A indigenous man from the Tabajara tribe is seen in Tocantins river before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





A indigenous man from Guarani Kaiowa looks on, at Tocantins river before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





An indigenous man from Kuikuru tribe reacts during a presentation before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people of several tribes watch a presentation by Indigenous people from Kuikuro before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people of several tribes watch a presentation by Indigenous people from Kuikuro before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people of several tribes watch a presentation by Indigenous people from Kuikuro before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous men from the Tabajara tribe talk in front of Sports Arena before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people of several tribes watch a presentation by Indigenous people from Kuikuro before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people from the Kuikuru tribe dance during a presentation before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





An indigenous boy from the Kuikuru tribe dances during a presentation before the I World Games for Indigenous People in Palmas, Brazil, October 21, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people from the Kayapo tribe watch a soccer match during the I World Games for Indigenous People in Palmas, Brazil, October 22, 2015. (Photo by Ueslei Marcelino/Reuters)





Indigenous people from the Kayapo tribe watch a soccer match during I World Games for Indigenous People in Palmas, Brazil, October 22, 2015. (Photo by Ueslei Marcelino/Reuters)