One of the last remaining Amazon tribal communities yet to have contact with the outside world has been photographed from the air, reports the BBC. The photos show startled, red-painted tribesmen aiming arrows at the aircraft overhead. Members live in thatched huts near Brazil's remote Peruvian border. More than half the world's 100 uncontacted tribes live in Brazil or Peru. Brazil's government took the photos as part of a push to protect the tribes. (More Amazon rainforest stories.)