In the Southern Beaufort Sea, “sea ice forms along the shore and then retreats, especially in summer. As the sea ice retreats farther and farther from shore in a warming Arctic, these polar bears are faced with a choice of coming ashore—and fasting until the ice returns in the fall—or swimming long, exhausting distances to reach the remaining pack ice. However, because ice located far offshore lies over less productive waters, bears in these areas may successfully complete a marathon swim yet still not find any seals to hunt.” – Polar Bears International.
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- Polar Bears of Barter Island, Alaska