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Just as the individual has a definite length of life, so have species a limited duration. The progress and transition of the world, Darwin declares, will see the extinction of certain variants of human life. (Volume 11, Harvard Classics)
Darwin first outlines his theory of natural selection, Sept. 5. 1857.
By Rich E Book3.8
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Just as the individual has a definite length of life, so have species a limited duration. The progress and transition of the world, Darwin declares, will see the extinction of certain variants of human life. (Volume 11, Harvard Classics)
Darwin first outlines his theory of natural selection, Sept. 5. 1857.

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