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How do new species form?

Updated: 8/11/2023
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10y ago

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The central idea of biological evolution is that all life on Earth shares a common ancestor. Over a large number of years, evolution produces diversity in forms of life due to gene flow, mutations, migration, genetic drift, and natural selection. Some things can be explained, for example, in geographical isolation. Over time a species which can not interbreed because of mountains, becomes less alike and can no longer interbreed to form fertile offspring.

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10y ago
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