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Keep out of the water! -- Sea monsters -- Super sharks -- Terrible teeth -- Wonderful whales -- Sea scorpions -- 6 great facts about ancient sea animals -- Still swimming -- Quiz whiz.

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 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.