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恐龙知多少
闫闫洪
2024-08-24 16:43:22
小朋友,你们好!恐龙是生活在大约2.3亿至6600万年前的爬行动物,它们在地球上繁衍生息超过1.6亿年,是中生代的代表性生物。恐龙的种类繁多,形态各异,有些如雷龙般庞大,有些如驰龙般敏捷。恐龙的灭绝原因至今未有定论,主要假设包括小行星撞击地球、火山爆发、气候变化等。虽然大部分恐龙在白垩纪末期的灭绝事件中消失,但其后裔鸟类却幸存下来,成为现代鸟类的祖先。恐龙的化石发现与研究,极大地推动了对地球历史和生物进化的理解。
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