Now by the action of natural selection, all terrestrial plants have acquired a resisting power against bacterial diseases—they never succumb without a severe struggle, but the red weed rotted like a thing already dead.
But by virtue of this natural selection of our kind we have developed resisting power; to no germs do we succumb without a struggle, and to many—those that cause putrefaction in dead matter, for instance—our living frames are altogether immune.
He pointed out—writing in a foolish, facetious tone—that the perfection of mechanical appliances must ultimately supersede limbs; the perfection of chemical devices, digestion; that such organs as hair, external nose, teeth, ears, and chin were no longer essential parts of the human being, and that the tendency of natural selection would lie in the direction of their steady diminution through the coming ages.
There are no more uses of "natural selection" in the book.
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She argues that dreaming must serve a purpose or natural selection would have eliminated such a vulnerable state.
I was slightly stunned by this story, for I was not prepared to have an unlettered and untutored Eskimo give me a lecture, even in parable form, illustrating the theory of survival of the fittest through the agency of natural selection.