Naked Amazon Awa tribe initiate BBC reporter
Justin Rowlatt was forced to adopt the traditional dress of one of Brazil's last nomadic people while on a hunting trip.
The global demand for Brazil's resources, in particular from China, is affecting its indigenous people, like the Awa.
They live almost entirely off what they can find in the forest, but logging and farming is threatening their way of life.
The Chinese Are Coming was broadcast on 8 February and 15 February, 2011. You can watch more clips from the programme here.