Data from: Selective bird predation on the peppered moth: the last experiment of Michael Majerus

Laurence M. Cook, Bruce S. Grant, Ilik J. Saccheri, James Mallet, J. Mallet, L. M. Cook & I. J. Saccheri
Colour variation in the peppered moth Biston betularia was long accepted to be under strong natural selection. Melanics were believed to be fitter than pale morphs because of lower predation at daytime resting sites on dark, sooty bark. Melanics became common during the industrial revolution, but since 1970 there has been a rapid reversal, assumed to have been caused by predators selecting against melanics resting on today's less sooty bark. Recently, these classical explanations of...
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