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《挪威旅鼠集体跳海自杀之谜》纪录片解说素材1080P全1集
挪威旅鼠主要生活在纵贯挪威等国家斯堪的纳维亚山地,这片山脉绵延一千多公里,横穿北极圈,最北超过北纬70°。斯堪的纳维亚山区的许多地方有着漫长而严酷的冬天,但这种小啮齿动物设法战胜了它。在寂静的积雪下,挪威旅鼠开凿出了错综复杂的迷宫,整个冬季大都潜伏其中活动,避开了严酷的外界。旅鼠一边开掘迷宫,一边取食积雪掩埋的植物(主要是苔藓)。旅鼠们的迷宫有时会相连贯通,组成了雪下的路网。
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