Amazon Indians from different tribes gather to show their unity as they continue their occupation of the Belo Monte hydroelectric dam construction site for the second day, in protest against the dam's construction, in Vitoria do Xingu, near Altamira in Para State, May 3, 2013. Indians from the Munduruku, Juruna, Kayapo, Xipaya, Kuruaya, Asurini, Parakana and Arara tribes have paralyzed the construction of the dam, projected to become the world's third largest in energy production. They are demanding that the Brazilian government hold prior consultations with indigenous peoples before building dams that affect their lands and livelihoods, an issue that has sparked years of protests against the Belo Monte dam. Picture taken May 3, 2013. REUTERS/Lunae Parracho (BRAZIL - Tags: SOCIETY BUSINESS EMPLOYMENT ENVIRONMENT ENERGY CIVIL UNREST)