New DNA evidence shows that polar bears evolved from grizzlies in a cold refuge in the Svalbard area about 120,000 years ago.
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© Daniel J. Cox/NaturalExposures.com
Such a pretty boy. Male polar bears are content to live most of their adult lives alone—unless they’re in the mood to mate. But they won’t stay with the female for long. Males take no part in raising cubs.
Rare Fossil Sheds Light on Polar Bear Origins
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- EPA Strongly Reaffirms its Climate Change Position Doubts about climate change? Not when you examine the science.... Jul 30, 2010
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