The Great Hall houses real fossils, including the Jurassic-age skeletons of Brontosaurus and Stegosaurus. The Discovery Room features touchable specimens and live critters. Among the latter are a working leafcutter ant farm, poison dart frogs, pet snakes, bearded dragons, walking sticks and more. Changing exhibit galleries now feature Dinosaurs Take Flight: The Art of Archaeoptryx (through August 30, 2017) and Beauty and the Beetle (through August 6, 2017). Other permanent exhibits on Mammalian Evolution, Earth & Space, and Human Origins. Stunning animal habitat dioramas and Rudolph Zallinger's Pulitzer-winning fresco The Age of Reptiles--the world's most famous dinosaur painting--are among visitor favorites. The Museum Store was cited by The New York Times as "one of the best."