SpeciesPongo pygmaeus
Date & Place of BirthBorn, 1981. Arrived on 9 January 1989 to Semenggoh Nature Reserve (653ha)
StatusSemi Wild
UpdateRitchie is still the alpha male of Semenggoh Wildlife Centre. He is still fit and strong. He fears that some other male orang-utan might take over his position. He dislikes to see the growth of any other male orang-utan.