Dead Dolphins

Over the last 5 months there have been around 120 dolphins washed up dead on Texas beaches.   They are calling it an "unusual mortality event".  No one is sure what is going on or why.  They have found some gray sludge in some of the dolphins’ stomachs.  Could this be more environmental fallout from the oil leak in the Gulf of Mexico?  Or is it another sign of the impending apocalypse?  Who knows, but it sure is sad.