http://www.funai.gov.br/ -Portuguese site), a governmental office that tracks and tries to protect indigenous groups thought to have had no contact with the outside world. According to FUNAI, there are over 100 uncontacted tribes throughout the world and half of those are, like this one, in the dense rain forest of Peru and western Brazil. http://www.bloomberg.com/apps/news?pid=20601082&sid=a7KiEmlgepRA&refer=canada, and Australia's "Courier-Mail":http://www.news.com.au/couriermail/story/0,23739,23782431-952,00.html.