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Natural Selection |
| edHelper's suggested reading level: | grades 9 to 12 | |
| Flesch-Kincaid grade level: | 8.82 |
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Natural Selection
By Cindy Grigg |
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1 In 1858, Darwin and another British biologist, Alfred Russel Wallace, proposed an explanation for how evolution occurs. The next year, Darwin elaborated on this and his observations in a book called The Origin of the Species. In his book, Darwin explained that evolution occurs by means of natural selection. Natural selection is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species. Darwin identified a number of factors that affect the process of natural selection: overproduction, competition,, and variations.