Peter Pratje says orangutans in Sumatra are threatened by pulp and paper companies . He 's working to introduce orangutans back into the wild . `` It 's like fighting for a member of my family , '' he says . PETER PRAJE :
Peter Pratje says orangutans in Sumatra are threatened by pulp and paper companies . He 's working to introduce orangutans back into the wild . PETER PRAJE :