The moth population always had genes for light and dark color. No new information was added in this example, 1 and so it is not an example of evolution. It is, however, a great example of natural selection, which creationists agree with.
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Dawkins, R. (1996). Climbing Mount Improbable. New York: Norton.
- Dawkins, 1996, p. 87-88: “It is often wrongly thought that after the Industrial Revolution natural selection worked on a single brand-new mutation. On the contrary, we can be sure that there have always been dark individuals–they just haven’t lasted very long. Like most mutations, this one will have been recurrent but the dark moths were always rapidly snapped up by birds. When conditions changed after the Industrial Revolution, natural selection found a ready-made minority of dark genes in the gene pool to work upon.” ↩