Date:
May 8, 2014
Source:
University of California - Berkeley
Summary:
The polar bear diverged from the brown bear, or grizzly, as recently as several hundred thousand years ago, according to a genome comparison by American, Chinese and Danish researchers. They pinpointed genes that underwent extreme selection over time, specifically genes that deal with fat metabolism and apparently allowed the bear to adapt to a diet unusually high in fat. These genes could provide clues to help humans deal with health problems caused by high-fat diets.
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