It has overtaken the polar bears at the head of the toxic table. They are the killer whales - or ‘orcas’, as they are sometimes known. Among all Arctic mammals, orcas have ingested the highest concentration of hazardous man-made chemicals....
Killer Whales: Most Contaminated Mammals in the Arctic
Made Popular Dec 14 2005
It has overtaken the polar bears at the head of the toxic table. They are the killer whales - or ‘orcas’, as they are sometimes known. Among all Arctic mammals, orcas have ingested the highest concentration of hazardous man-made chemicals....
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