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在地质学历史上,地球至少经历了5次物种大灭绝。最近一次大约是在6500万年前,由于小行星撞击地球导致恐龙灭绝,哺乳动物利用新的可用生态空间,最终统领了整个地球。随着人类对动物栖息地的侵占、破坏和环境的不断恶化,地球正在濒临又一次大规模物种灭绝,而且很可能在未来几个世纪就会发生。仅仅在过去的几百年里,数以千计的动植物物种濒临灭绝,而且数以百计的物种已经灭绝。科学家认为,未来的大规模生物灭绝
In the history of geology, the Earth experienced at least 5 species of mass extinction. Most recently, about 65 million years ago, as the asteroid hitting the Earth caused the extinction of dinosaurs, mammals took advantage of the new available ecological space and eventually led the entire planet. With the human occupation of animal habitats, destruction and worsening of the environment, the Earth is on the verge of another large-scale species extinction, and is likely to occur in the coming centuries. In the past few centuries alone, thousands of animal and plant species have been on the verge of extinction, and hundreds of species have been extinct. Scientists believe mass extinctions of the future