03/28/2008 02:43 am ET Updated May 25, 2011

Killer Whales Most Toxic Mammals In The Arctic…

Killer whales are the most toxic mammals in the Arctic, riddled with household chemicals from around the world, the environmental pressure group WWF said on Monday.

Scientists found that the blubber of killer whales, or Orcas, taken from a fjord in Arctic Norway was full of polychlorinated biphenyls (PCBs), pesticides and even a flame retardent often used on carpets.

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