Guardian: Dolphin calving season has just begun in the Gulf of Mexico and marine biologists are reporting an alarming trend. Between 2000 and 2009, an average of 25 to 30 dolphins were found dead on the beaches of the Gulf each year. This year, 13 dead dolphins were found between 13 January and 14 February alone; 11 were aborted or newborns. Biologists have been following this trend for three years, since the Deepwater Horizon oil rig disaster claimed 11 lives and triggered the worst oil spill in US history....