The year 2011 stood out in that 32 specific families of bottlenose dolphins were hardest hit in Alabama, Louisiana and Mississippi, with more deaths recorded than in previous years; Louisiana had the highest number of dead dolphins ever recorded in that state in 2010 and 2011. (scientificamerican.com)
Unusual adrenal and lung conditions seen in dead dolphins in the months after the 2010 BP Gulf of Mexico oil spill point to the oil as the cause. (scientificamerican.com)
At the peak of the Virginia die - off this summer, 17 dead dolphins washed up in one day — requiring volunteers to work overtime. (scientificamerican.com)