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Trivializing Extinction

机译:平凡的灭绝

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摘要

It has been suggested that 99.9% of all the species that have ever existed on this planet have gone extinct. Given that there are about 1.8 million named species and an estimated order of magnitude more unnamed, this means that there have been 2 billion or so species that have existed on our planet since life began here 3.5 billion years ago. The numbers could be even higher when the full extent of microbial life on our planet is realized. Extinction prior to humans has been an ongoing process, considered part of the natural way of existence on this planet.
机译:有人提出,这个星球上曾经存在的所有物种中有99.9%已经灭绝。鉴于大约有180万种已命名物种,而未命名的数量级估计更高,这意味着自35亿年前在这里开始生活以来,地球上已经存在大约20亿种物种。当我们星球上的全部微生物生命实现时,这个数字可能会更高。人类灭绝是一个持续不断的过程,被认为是地球上自然存在方式的一部分。

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