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Offbeat  

Gigantic whale sharks

This lucky photographer had the close up experience of a lifetime with whale sharks in this incredible clip. Researchers took a guided tour to the waters off Isla Mujeres in Mexico to meet these gentle giants close up. Whale sharks are the largest sharks in the world, and even the largest fish. They are next ibn size only to a few whale species. They are not mammals, as they breath through oxygen exchange in their gills, as fish do. These magnificent animals come to these waters to feed on krill, plankton, tiny fish and fish eggs. They are filter feeders and they do not possess teeth. Although they reach a size of 50 feet and can weigh an estimated 100,000 lbs, they are harmless to humans.

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