Life on the edge of a frozen sea is tough. Ice at both poles is constantly moving, and in winter freezes solid with air temperatures 70 °C below freezing. Only in spring, with the retreating ice and light reaching the water, does life ...See moreLife on the edge of a frozen sea is tough. Ice at both poles is constantly moving, and in winter freezes solid with air temperatures 70 °C below freezing. Only in spring, with the retreating ice and light reaching the water, does life begin again. Written by
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