Indians from the tribe Munduruku attend a meeting with the government at the Planalto presidential palace in Brasilia, Brazil,  June 4, 2013. The Indians, who had been occupying the controversial Belo Monte dam which is being built in the Amazon on the Xingu River, were flown to Brasilia by the government for talks to try to end the occupation. Environmentalists and indigenous groups say the dam would devastate wildlife and the livelihoods of thousands of people who live in the area to be flooded. (AP Photo/Eraldo Peres)

Amazonia’s last uncontacted tribes

They survive by hunting and gathering in the forest or by cultivating gardens with handmade tools. In some cases, they don't wear clothing and speak...
Indians from the tribe Munduruku attend a meeting with the government at the Planalto presidential palace in Brasilia, Brazil,  June 4, 2013. The Indians, who had been occupying the controversial Belo Monte dam which is being built in the Amazon on the Xingu River, were flown to Brasilia by the government for talks to try to end the occupation. Environmentalists and indigenous groups say the dam would devastate wildlife and the livelihoods of thousands of people who live in the area to be flooded. (AP Photo/Eraldo Peres)

Amazonia’s last uncontacted tribes

They survive by hunting and gathering in the forest or by cultivating gardens with handmade tools. In some cases, they don't wear clothing and speak...