Hudson River fish evolve toxic immunity
Posted Sun, 20 Feb 2011 11:34:03 GMT by Lucy Brake
Scientists have discovered fish feeding at the bottom of Hudson River have developed a gene that means they have a special immunity to PCB toxins. Polychlorinated biphenyls, otherwise known as PCBs started to be used in many commercial and industrial products in the late 1920s and up until the late 1970s, when they were finally banned, they polluted major rivers and waterways around the world.
Hudson River fish evolve toxic immunity