It is under investigation that there have been more than 200 dead dolphins found from Louisiana to Florida and that’s the unusual number says the sources NOAA.

Total number of 261 bottlenose dolphins were found stranded floating over the Louisiana to Florida Panhandle. Authorities discovered the dolphins from February 1 and May 3. Majority of them 98% were dead according to the National Oceanic And Atmospheric Administration. Because of the dolphins deaths and the strandings, the agency declared as unusual mortality event. The investigation is still on to find out the cause of sudden deaths of the Dolphins. It includes everything, including freshwater spilling into the Gulf from the wet winter, food supply and possible lingering impacts from the 2010 Gulf Oil Spill.