The sea-with its unknowable depths, its far-reaching horizons, and its sparkling surface-holds some in fascination, others in fear. But one thing can't be denied by either beholder of the water: it is home to an array of species we can't even begin to know the extent of. But as for the underwater creatures of the past, who have been extinct for millions of years, we can make an attempt at learning all of them. With The Secrets of Ancient Sea Monsters, you...

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...