Explore the prehistoric sea and the incredible species that called it home more than 500 million years ago! Turn the wheel, lift flaps, and pull tabs to reveal fun facts in this interactive sturdy board book perfect for your curious little preschooler! Learn all about Elasmosaurus, nautilus, basilosaurus, and Megalodon featured at the David H. Koch Hall of fossils deep time exhibit at the Smithsonian national museum of natural history.
- Board book