Quote: Peppered Moth

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‘The peppered moth experiments beautifully demonstrate natural selection or survival of the fittest. But they do not show evolution in progress. For however the population may alter in their content of light, intermediate or dark forms, all the moths remain from beginning to end Biston betularia.’

L. Harrison Matthews, D.Sc., FRS, Introduction to ‘Origin of Species’, J.M. Dent and Sons, London, 1971.

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