Journey back to the time of the dinosaurs--with the Smithsonian Go back in time with the Smithsonian, and experience life among the dinosaurs. Smithsonian Young Explorers: Dinosaurs provides the perfect introduction for kids 6 and up to the fascinating world of dinosaurs. The playful and informative fact book teaches kids how we learn about dinosaurs, how they are classified, and which dinosaurs ruled the land millions of years...