As zoos continue to develop and displays are changed it seems gradually over the years walk through exhibits seem to be becoming more and more common. There have always been walk through bird enclosures but we have wallaby,lemur and squirrel monkey walk throughs . Any others that you guys have been through or would think that could work and do you think this actually is the future for all zoos etc.We will also take it as a give me the clore at London and Amazon World on Isle of Wight - mixed small species