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据国外媒体报道,英国研究人员发现,导致恐龙走向灭绝的真正原因并不是一颗彗星撞上地球,而是温度突然迅速下降。他们对挪威的化石进行研究发现,1.37亿年前,世
According to foreign media reports, British researchers found that the real cause of the extinction of dinosaurs is not a comet hit the Earth, but the temperature suddenly dropped rapidly. Their study of fossils in Norway found that 137 million years ago