Members of one of Brazil's few remaining "uncontacted" tribes, their bodies painted with red and black dye, shoot arrows at a surveillance plane from their rain forest encampment in western Brazil near the Peruvian border.

The photo, one of several released on May 29, 2008, by the indigenous-rights group Survival International, offers proof that such isolated tribes still exist in the increasingly threatened Amazon. The image was captured by officials from Brazil's National Indian Foundation (FUNAI).