Prehistoric Predators: Monster Shark Format:DVD William Sloan is a professional

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Prehistoric Predators: Monster Shark Format:DVD William Sloan is a professionalMegalodon was the biggest predator ever to swim the oceans. And for 20 million years, this ferocious 50 ton shark with a 9 foot jaw and 7 inch serrated teeth terrorized the creatures of the seas. Now, nearly 2 million years after its extinction, a team of scientists is combining research on today's great white with the only Megalodon fossils ever found to unlock the mysteries of this apex predator.