June 10, 2010 3:03 PM

Oil spill leaves Gulf sharks with an uncertain future

For now, the oldest creature that swims the fertile waters of the Mississippi Sound is hearty and healthy. That's good news considering the oil spill in the Gulf of Mexico has entered day 52. But what does the future hold for the ever-intimidating shark, which has graced the waters of the world for more than 350 million years?

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