How common is it to exhibit widespread species in different parts of the zoo? For example, keeping gray wolves in a North American and Asian-themed area? I seem to remember seeing this in Omaha but can't remember what species they were. What do you think of this in zoos? It seems like there is lots of educational value to me since it can illustrate how widespread some species are. It could also be effective since different subspecies could be exhibit, for example Mexican wolves and larger gray wolves.