An Underwater Serengeti


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People come to Isla del Coco in search of buried treasure, but the real riches are the abundant sea life beneath the ocean waves. Secret coves where hammerheads school in enormous numbers. Coral reefs that ripple with color by day but at night turn into killing grounds for packs of whitetip sharks. Pristine waters brimming with missile-sized tuna and acrobatic dolphins in hot pursuit of gleaming clouds of fish. Cocos Island, a tiny dot in the middle of the Pacific Ocean more than 300 miles off the coast of Costa Rica, is home to one of the greatest concentrations of predators on the planet.

Watch a preview of Shark Island with National Geographic Fellow Enric Sala.
Shark Island premieres Monday April 19 at 9P et/pt.

MORE ABOUT OCEANS:
National Geographic’s Ocean Now is an exploration, research, and conservation project that aims to find, survey, and help protect the last healthy, undisturbed places in the ocean.

PHOTOS OF THE COCOS ISLANDS:

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