By Christopher Mill, Contributing Reporter
RIO DE JANEIRO - The considerable rebuilding works of urban zoos in cities such as Chicago, London, Hong Kong, Melbourne and Cape Town in recent years have become leading examples for the rest of the world's zoological community in the creation of urban animal enclosures. Having hit a new record of over 70,000 visitors last year and with the forthcoming, and much-needed, renovations set to start in early 2012, Rio Zoo is slowly closing in on claiming a spot on . . .