'We need to think about how this could affect our health,' says researcher
                                
                                
                                    (Newser) -
                                    Researchers say they're "shocked and saddened" to have discovered toxic chemicals, including "forever chemicals," in the bodies of killer whales, including endangered southern resident orcas, whose population decline could be a direct result. Scientists from the University of British Columbia, Fisheries and Oceans Canada, and BC'...