Nature

The Secret World of Sharks and Rays (17x2)

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NATURE lifts part of the veil of mystery shrouding some fascinating — and often fearsome — creatures in The Secret World of Sharks and Rays. Sharks and their biological cousins, the rays, are among the highest-profile denizens of the deep, thanks to the popularity of books and films that have cast them in leading roles — as antagonist, not protagonist.