This Day in Peace History: On this day in 1859, "British naturalist Charles Darwin published On the Origin of Species, which explained his theory of evolution. The basis for the theory is natural selection, the process by which organisms change over time as a result of changes in heritable (genetically based) physical or behavioral traits.
Such changes allow an organism to better adapt to its environment and help it survive and have more offspring.
Evolution is now universally accepted among scientists, and is the organizing principle upon which modern biological and related sciences are based."
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