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寒武纪生命大爆发:可能并非由陨石撞击引发

 5 years ago
source link: https://tech.sina.com.cn/d/s/2018-09-24/doc-ihkmwytn7895684.shtml
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新浪科技讯北京时间9月24日消息,据国外媒体报道,一位知名科学家提出,地球早期生命在寒武纪的大爆发可能并不是由5亿年前的一场小行星撞击引起的。寒武纪大爆发(Cambrianexplosion)是生命演化史上的一场伟大事件,极其多样的动物在这

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