Natural selection is the process through which species adapt to their environments. It is the engine that drives evolution.
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On the Origin of Species
English naturalist Charles Darwin wrote the definitive book outlining his idea of natural selection, On the Origin of Species. The book chronicled his studies in South America and Pacific islands. Published in 1859, the book became a best seller.
Photograph by Ian Forsyth via Getty Images
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October 19, 2023
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