His name is Jambo and he is actually a (recessive) Chocolate-coloured Chimpanzee. He was produced by mating their original wildcaught Brown female(Coco) with her normal-coloured son, to produce another Chocolate one. I think, but not 100% sure on this, that the Chocolate gene seems also connected to one for Alopecia (baldness) which this Chimpanzee suffers from. He gradually lost all his hair as he became adult. There is no way they can get it to grow back. So its likely other Chocolate chimps from this strain may become similarly bald.