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Arctic Tundra. Arctic dwarf twisted birch Betula nana the dwarf birch is a species of birch in the family Betulaceae found mainly in the tundra of the Arctic region.

视  频 ID：  1095959153
版      权：  Andrey Armyagov
视频长度：  0:33
横纵比率：  1.90:1
所属分类：  自然 
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