Of all the supposed "proofs" of the theory of evolution, the most frequently repeated concerns changes in a species of moth in 19th century Britain. It is claimed that due to air pollution during the Industrial Revolution, tree bark was darkened-for which reason dark- colored moths were better camouflaged from predatory birds, and thus their numbers increased.
But this is not evolution, because no new species of moth emerged. All that happened was that the ratio ratio of the two already existing types in an already existing species changed. In addition, it has since emerged that the account on which this claim was based was untrue. The well-known photos showing moths clinging to the bark of trees were found to be fabrications. Contrary to what has been claimed, no instance of so-called "industrial melanism"-the darkening of color due to industrial pollution-has ever taken place.
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