A grey whale (Eschrichtius robustus) emerges from the waters of the Ojo de Liebre Lagoon, Baja California Sur state, Mexico on March 3, 2015.  The Pacific gray whales have been protected since 1947, and are at the center of a growing whale-sightseeing industry. Their numbers have dropped by a third, from around 26,000, in the late 1990s. Whales  go to Laguna de Liebre and others Lagoons, off Mexico's northwest Baja California peninsula, where grey whales breed and nurse their calves each year after migrating thousands of miles from Canada and Alaska. AFP PHOTO/OMAR TORRES        (Photo credit should read OMAR TORRES/AFP/Getty Images)