What Polar Bear Genomes May Reveal About Life in a Low-Ice Arctic
Shapiro’s Nature Ecology study also focused on what may have happened to other polar bear genomes during periods of low ice—in this case, around 120,000 or 125,000 years ago when, according to Shapiro, Arctic ice levels were similar to the present day’s. But here, she looked at the relationship between polar bears and brown bears. …
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