单词	natural selection
释义	natural selection noun : a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment Example Sentences Recent Examples on the Web Other researchers have argued that if a process as fundamental as photosynthesis could be improved upon, then surely natural selection would have done so by now. New York Times, 18 Aug. 2022 Some species, like crocodiles or cockroaches, may look more like their ancient ancestors than others, but that resemblance or lack of it simply shows that natural selection changes some characteristics more quickly than others. Marlene Zuk, Smithsonian Magazine, 9 Aug. 2022 Sometimes natural selection nudges two organisms toward the same trait. Ben Crair, The New Yorker, 15 July 2022 The difference for people with H.I.V., or another immunosuppressing condition, is that because the virus stays in their systems so much longer, the natural selection process has more time to favor mutations that evade immunity. Stephanie Nolen, New York Times, 4 Dec. 2021 Now, many of the processes that happen during aging really happen as a consequence of the declining force of natural selection. Steven Strogatz, Quanta Magazine, 27 July 2022 Instead, natural selection works in the opposite direction. Bruce Y. Lee, Forbes, 3 July 2022 Australian researcher Frank Fenner and his colleagues were the first to show that natural selection favored less virulent viruses. William A. Haseltine, Forbes, 1 June 2022 This logic is fundamentally flawed because complexity does not license dismissal of the overwhelming evidence for natural selection and, by itself, does not mandate any design, intelligent or otherwise. Stephan Lewandowsky, Scientific American, 16 Feb. 2022 See More Word History First Known Use 1842, in the meaning defined above Medical Definition natural selection noun : a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment
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