It's very much against their well-being to travel across open water. Out there, they are big, slow and tasty. We think they are just a big shark egg roll, and that's one of the reasons they don't move much between their different habitats in the West Atlantic.

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George has had lot of success up there and he was tough all race long, but I was confident I could stay out front. I knew, with his experience, he'd race me clean.

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What we've learned is the Florida manatee is genetically unique, and that it's isolated from manatees elsewhere in the Caribbean and the Yucatan. Because of their low genetic diversity, it causes concern but not alarm.

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