推荐回答(4个)
恐龙是生活在中生代时期的爬行动物,距今大约为2.4亿年至6500万年前,可以说是当时地球的霸主,曾统治地球长达1.6亿年,灭绝与6500万年前。
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F9e3df8dcd100baa148ee5dc45710b912c9fc2e8a%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
关于恐龙的灭绝,科学家研究发现,在大约6500万年前,一颗直径长达10公里的小行星撞击了地球的尤坎坦半岛,威力相当于100万亿吨TNT当量,撞击的碎石飞向万米高空,之后又坠落轰炸地球表面,导致发生撞击周围的恐龙大量死亡,遮天蔽日的尘埃开始笼罩了整个地球,没有阳光的照射,地球进入核冬天,恐龙没有食物开始陆续死亡
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fcc11728b4710b9124103ec81d3fdfc039345228a%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
也正是因为那一次的小行星撞击给了哺乳动物进化发展的机会,人类才得以进化出智慧,成为现在地球的霸主,食物链顶端的生物。
然而人类到底能称霸地球多久几乎无法预测
核战争
在未来如果人类发生了世界性核战争,可怕核爆炸释放的巨大能量以及核辐射将灭绝大部分人类,地球不再适合人类生存,人类文明也将不复存在!
外星文明入侵
如今人类一直在寻找地外文明的存在,并向宇宙中发射了无数的无线电信号,假如有一天人类的这些举动被更高级的文明发现,引来外星文明,以他们的科技技术可以说几乎完全的碾压我们,要想毁灭我们只在一念之间!
![](/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fc2cec3fdfc0392455877fb709794a4c27c1e258a%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto)
太阳毁灭
太阳是一颗黄矮星,大约还有50亿年的寿命,在五十亿年之后,由于氢元素的消耗殆尽,会形成红巨星,可能将膨胀的到地球轨道,地球上的液态水被蒸发,变成一个熔岩星球,所有生命将会被烧死,人类也将灭绝
所以,人类要在50亿年之内,发展科技,逃离太阳系,能在宇宙中星际旅行,前往遥远的其他宜居行星。这样人类才能一直繁衍生息下去!
如果人类没有灭亡的话,那么人类就能一直统治地球下去。最起码都能统治10亿年的时间。
在我看来,以现在人类的智慧,绝对能够永久地统治地球,但有可能宇宙发生大爆炸,人类毁于一旦也会产生新的文明。
永远。因为人类拥有高级智慧,而且能够不断的适应环境的变化,所以人类能统治地球到永远。
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