Stingrays surge in Southern California's warm waters

This year has seen even more rays with a marine heat wave persisting off parts of the West Coast, marking the third time on record that such a large section of coastal waters stayed warm for so long, according to the U.S. National Oceanic and Atmospheric Administration. In June, officials confirmed the formation of an El Niño, the natural warming of parts of the central Pacific that alters weather worldwide, that is expected to grow to historic strength.