Meet Megalodon and more of the biggest, coolest, and creepiest marine animals from the prehistoric era! Teeth, tails, and scales--oh my! Newly independent readers will be transported back to a time when bugs were big and monsters ruled the deep. Each page of this dazzling Level 2 reader is packed with jaw-dropping facts on the fiercest predators of the ancient oceans. Learn about Megalodon, the largest shark ever to have lived; Jaekelopterus, a human-size scorpion; Helicoprion, a fish whose teeth were in the shape of a circular saw; and more! National Geographic Readers feature engaging text carefully vetted by expert educators and accompanied by magnificent National Geographic photography. Level 2 books feature more challenging text to help readers build their confidence, skills, and vocabulary. Featuring incredible illustrations by renowned paleo-illustrator Franco Tempesta and some of the coolest species of prehistoric marine animals, National Geographic Readers Prehistoric Sea Monsters is sure to be a page-turning hit with kids!.