"I met a remote tribe member in the Amazon, he told me exactly what I dreamed about at night" - Voila! tourism. Damien Lewis joined an expedition whose purpose was to investigate isolated tribes - and was amazed by what he discovered.

"Illegal gold miners who trespassed on the tribe's territory were shot to death with poison darts" Experts believe that there are about 300,000 natives who lead a Stone Age lifestyle in theAmazon rainforest, where they are grouped in about 450 different tribes.