"Members of an unknown Amazon Basin tribe and their dwellings are seen during a flight over the Brazilian state of Acre along the border with Peru in this May, 2008 photo distributed by FUNAI, the government agency for the protection of indigenous peoples. Survival International estimates that there are over 100 uncontacted tribes worldwide, and says that uncontacted tribes in the region are under increasing threat from illegal logging over the border in Peru." Saw this on yahoo, more here: http://news.yahoo.com/s/nm/20080529/sc_nm/brazil_tribe_dc