Supersized Sharks

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US

Norfolk Island, 800 miles off the coast of Australia, is home to some of the largest tiger sharks in the world. As strange as it sounds, some think this small island in the middle of the South Pacific has become like a drive-thru burger joint for tiger sharks to gorge on meat. For the first time, scientists are diving in to answer why there are so many huge tigers there. Shark biologists Lauren Meyers, Charlie Huveneers and Adam Barnett lure the giants to their boat to investigate and make a surprising discovery.