A Savage Hoax: The Cave Men Who Never Existed LiveScience

Recent photos from Brazil, supposedly showing unknown Indians in the rainforest, have been shown to have bent the truth somewhat, although they can't be labeled a hoax, because the Indians in question have never been contacted. That's not the case in an event that rocked the scientific world in 1971 when the discovery of the stone-age Tasaday tribe was announced in the Philippines. Benjamin Radford details the hoax that fooled such prestigious edifices of scientific journalism as National Geographic and led to a highly regarded book.