Chemicals threaten Europe’s killer whales with extinction

Toxic chemicals known by the acronym PCBs are poisoning killer whales in European waters, and in some cases severely impeding their ability to reproduce, researchers reportedKiller whales in European waters face extinction due to outlawed but long-lived pollutants that also threaten several species of dolphins, according a study released Thursday. Toxic chemicals known by the acronym PCBs are poisoning these marine mammals, and in some cases severely impeding their ability to reproduce, researchers reported. Becoming more concentrated as they move up the food chain, PCBs settle into the fatty tissue of top ocean predators.


January 14, 2016 5:14 pm

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