Incredibly interesting museum, a delight to walk through and be "in" the environment along with the animals you're seeing. Some (like the bee exhibit) depend on local wild bees to be around for you to see as you read the information about them - great that the grounds are so "natural" that a few of the animals could be wild and non-confined. The hummingbirds were nesting and a few babies were out, so so precious. Bring a camera with a good zoom/sports lens! We stumbled upon the cave at the last minute as we were walking out, wish we would have had more time to explore there. One word of caution - watch (and listen!) for rattlesnakes! We stumbled upon a very irritated rattler, poised and ready to strike, right next to the walking path. It truly is a living desert, keep your eyes and ears open.