A walkthrough poison dart frog exhibit? That either sounds like an accident waiting to happen or possibly one of the COOLEST new advances in exhibit design out there.
In addition to the doves and dart frogs, there are also butterflies, geckoes, snails, and hummingbirds in this room (and probably even more animals I don't know about). The keepers change the humidity level every day (sometimes it's pretty dry and sometimes very foggy) and depending on the humidity level that day different species come out.