Gramática do Kamaiurá, Língua Tupi-Guarani do Alto Xingu Dr. Seki's book on the Kamayurá is the first comprehensive grammar of an Indian language by a Brazilian since Anchieta's description of Tupinambá in 1595." Gramática do Kamaiurá, Língua Tupi-Guarani do Alto Xingu Gramática do Kamaiurá, Língua Tupi-Guarani do Alto Xingu, by Lucy Seki, is an authoritative and comprehensive description of Kamayurá, an indigenous language of Brazil. Kamayurá is spoken by the people of the same name, which number about 290 as of 2005, living in two villages in the Xingu National Indian Reservation, Brazil. The book has 482 pages of text, plus 17 pages of color photos of the
Xingu River extracting from the river most of what they need for food and water. The Brazilian government is building the Belo Monte Dam, which will be the world's third-largest hydroelectric dam, on the Lower Xingu. Construction of this dam is under legal challenge by environment and indigenous groups, who assert the dam would have negative environmental and social impacts along with reducing the flow by up to 80% along a stretch known as the Volta Grande ("Big Bend"). The river flow in this stretch is highly complex and includes major sections of rapids. More than 450 fish species have been documented