Immerse yourself in the sea in this illustrated look at the world's largest mammals for the littlest learners.Simple text and watercolor art explore the anatomy, evolution, diet, and much more of these majestic ocean creatures. Captions identify different species, vocabulary words (with pronunciations), and key facts. The gray whale has the longest migration route at about 6,000 miles! A "Whale Tales" section with bonus trivia is included at the end. Gail Gibbons is a titan in the field of children's nonfiction, having published over 100 nonfiction books for kids.