| http://www.w3.org/ns/prov#value | - They eat mostly fat, but they don???t get heart disease the way humans would.Scientists said the Thursday in journal Cell that the reason lies in their genes.Some speedy evolutionary tricks, particularly in the genes which handle how fats are metabolized and how fats are transported in the blood, have allowed polar bears to survive in the Arctic, scientists said.And it all happened within the last
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