It is a gorgeous exhibit, and yet another outstanding wolf habitat in an American zoo. The beavers and wolves are in the same enclosure, and I'm not sure how the beavers survive. I think that the edge of the riverbank is just high enough to deter the wolves from reaching the rodents, and also the beavers are wily enough to realize that there is a pack of gray wolves within the area.
Its a beautiful concept and rarely is such attention given to beavers, although the wolves being exhibited with them does raise a bit of concern for me.