Summary
KILLER whales have deposed polar bears as the most toxic mammals in the Arctic and possibly the planet.
Although the Arctic is perceived by many to be pristine, unspoiled and unpolluted, the reality is that it is severely polluted by hazardous man-made chemicals.See the full content of this document
Extract
Killer Whales Become Most Toxic Mammals
Previous Arctic research awarded the dubious honour of "most contaminated mammal" to the polar bear, but a new study by the Worldwide Fund for Nature (WWF) shows...
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