
A virus-linked cancer killing California sea lions is sounding a chilling alarm for mankind. Exposure to environmental toxins significantly boosts risk for the herpes-like cancer, which was discovered in sea lions in 1979. Since then, between 18% and 23% of adult sea lions admitted to a California animal rescue-and-research center have died of the disease. That’s the highest rate for a single type of cancer in any mammal, including humans, the researchers said. “The decades of research looking into this deadly disease clearly shows the ocean environment we all share is in trouble, and that we need to find solutions to protect our collective health,” said study co-author Pádraig Duignan, chief pathologist at The Marine Mammal Center in Sausalito, Calif. The study — based on more than 20 years of research and examination of nearly 400 California sea lions — was recently published in the journal Frontiers in Marine Science. The researchers said more must be done to stop ecosystem pollution in order to prevent virus-caused cancer in both wildlife and humans. The study found that the blubber of California sea lions has among the highest levels of some organic pollutants found in any marine mammal. “Even though some of the pollutants we’re finding in the blubber have been out of use for years, these cancer-causing elements remain in the environment for a very long… read on > read on >