The world's largest tree-dwelling primate, the endangered orangutan has been the victim of poaching, the ape trade and habitat destruction.

Dr. Biruté Galdikas has lived for over 35 years in the gruelling jungles of Borneo and Sumatra, fighting to save the orangutan. At first a passive observer, she soon became an activist researcher, rescuing orphaned victims of the ape trade, re-introducing captured orangutans into the wild and lobbying the Indonesian government to help protect these close relatives of humanity.