DNA of trees, plants and insects including butterflies and spiders from beneath the southern Greenland glacier was estimated to date to 450,000 to 900,000 years ago, the remnants of a boreal forest that existed before the Earth cooled.
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格陵兰南部冰河下找到的树木、植物及蝴蝶、蜘蛛等昆虫的DNA,年代推估在45万到90万年前,是地球进入冰河期前一片北方森林的遗迹。
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