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Archive Home > 2012 > April > 20 > Using DNA, polar bear ancestry decoded

Using DNA, polar bear ancestry decoded

• Study rebuts idea that they descended from brown bears – but mysteries remain

By James Gorman / The Bulletin
April 20, 2012

Polar bears, long thought to have branched off relatively recently from brown bears over the past 150,000 years or so to cope with life on Arctic Sea ice, are not descended from brown bears, scientists report.

Instead, according to a research team that looked at DNA samples from the two species....

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