eachnimal an indidudual, wiwith aifferere face, a different characteter, and a differenent speed at whichhy learn new things. th'r're likene b big fily. reporter: veterinarian andhani hartanti is going to check dora over. not ononly has she b been losg weightht, she's alsoso been hag difffficulties clilimbing -- probablyly because shehe w ina fight t with anotherer orangan d isis injured. andhan abobouthree weeks ago, e of o o staffouound her already on the groun d ththey spect t thadora susuffers something, or a probl. and we knenew that the r rightt has an opepen wound, deeeep enh so we need t to stitch so o then can healal. mainininlowland rainfores ---- and d e of the last remaininin sanctuaries for orgutata. peter: if orangutans can survive hehere, en tigiger elephanan, and d all the otheher animals l be aututomatically p protected,. that's why it's so important to preseserve what wewe have here.. rereporter: peteter and andhanai cocontinue to obobserve the orangutans t they release e inte wild foror at least twtwo yea. e project will only be nsnsidered sucuccessf thee animals have o