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2005-01-30 09:42:47

NEW HAVEN, Conn. (AP) -- A toxic chemical used to prevent barnacles from clinging to ship hulls may cause deafness in marine mammals and could lead whales to beach themselves, Yale researchers say. The hearing loss would be the latest environmental hazard linked to TBT, a chemical already known to be harmful to some aquatic life. TBT is banned in many countries but is still widely used. Yale researchers based their theory on a study of guinea pigs, because mammals have similar ear...