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2016-02-17T20:16:59+05:30
 Charles Darwin proposed the theory of natural selection. Natural selection is the increased survival and reproductive success of individuals who are well adapted to live in an environment. For example, the natural selection that occurred in beetles The crows ate more red beetles as compared to green beetles. Because of natural selection, the beetle population evolved from red to green to fit better in their environment. These factors led to an increase in the population of green beetles.
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