Last week, AIDESEP, a Peruvian advocacy group for indigenous peoples of the Amazon rain forest, released footage of rare contact between the Mashco-Piro tribe and the outside world. The footage dates back to June, when the Mascho-Piro tribe attempted to cross the river near Monte Salvado to exchange bananas with the Yine, an Indian community who speaks a similar dialect. The Mascho-Piro tribe is what environmentalists call an “uncontacted tribe,” an isolated group with little to no ties to the outside world. Before June, the Mascho-Piro had not been seen in twenty years. Survival International, an advocacy group committed to protecting the habitats and rights of indigenous groups, estimates that there are over one hundred uncontacted tribes around the world and that the Mascho-Piro tribe is one of fifteen peoples in Peru. Rebecca Spooner, campaigner at Survival International, explains how oil and gas projects in the Amazon are affecting the livelihood of the Mascho-Piro. (Photo: AP Images).