In another dynamic collaboration, Matthew Reinhart and Robert Sabuda examine prehistoric creatures found beneath the sea. Each eye-catching page features a large pop-up and several smaller fold-out sections that open to reveal their own three-dimensional surprises. Engaging section headings (“Mollusks on the Move,” “Amphibians: Surf and Turf”) draw readers to the lively presentation of information on a wide array of ancient ocean life. (Ages 5–10)