brindafella writes: The head gorilla at Australia's most prestigious zoo, Taronga Park Zoo in Sydney, is about to be retired. Kibabu is a 'silverback' and, at age 36, is about to be taken away from his family and retired. His replacement is a 12-year-old silverback from France. It's a natural thing in the wild, but Kibabu is not going to be in a fight that he loses to a younger male. He'll just go. His new home in retirement will be another zoo, about 150km away, at Mogo.