Link Between BP Spill And Dolphin Deaths Investigated

The federal government still has no idea if the April 2010 BP oil spill in the Gulf of Mexico caused the deaths of hundreds of dolphins.

Since early 2010, an unusually high number of marine mammals -- 580, mostly dolphins -- have stranded and died off the coast of Louisiana to Florida. On Thursday, officials with the National Oceanic and Atmospheric Administration, the federal agency that tracks marine mammal deaths, announced that a bacteria called Brucella was found in five bottlenose dolphins that died in the northern Gulf of Mexico.

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