アメリカ内務省のインスタグラム(usinterior) - 1月21日 01時19分

The wind and cold don’t bother this #muskox. Its long, coarse outer fur keeps it waterproof and windproof. Its underfur, qiviut, traps its body heat to keep it very warm. Muskoxen are one of the only large animals hearty enough to survive year-round in the Arctic. Although their populations have fluctuated over the last century, today they number around 3,800 in #Alaska -- many of them in #BeringLandBridge National Preserve. Photo by #NationalPark Service.

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