Posted on Sea Lions, Dolphins Soaring sea lion cancer linked to DDT dumping off California’s coast – “pollutants such as Polychlorinated biphenyls (PCBs), man-made industrial chemicals, and DDT play a significant role as co-factors in the development of this cancer.” Another marine life disaster unfolding in the US as dead harbour seals are washing up in large numbers around southern Maine Hundreds More Starving Sea Lions Continue To Wash Up On West Coast Why are hundreds of dead dolphins washing up on French beaches? Mass animal-die-offs 2019