Might be too hot of a take. As much as I enjoy designing a koala habitat, I can't help but feel like they'd be perfect for the WE exhibit (well, aside from the walkthrough part; that isn't super ideal for most animals, but anyway). I usually build my koala habitats as small or smaller than the exhibit anyway, and in such a setting they wouldn't need to move nearly as much as they do in habitats. Of course, we would also miss out on the adorable babies, but still.