Displays include a primitive-toothed whale in the Eocene, a pig-like, extinct mammal from the Oligocene, a Miocene rhinoceros being attacked by two saber-toothed, cat-like animals, a 15 feet -tall sloth standing on its hind legs in the Pliocene area and a 500,000-year-old jaguar chasing a peccary from the Pleistocene epoch.