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  • You have studied the story of Pepper moths in England. Had the industries been removed, what impact could it have on the moth population? Discuss.

You have studied the story of Pepper moths in England. Had the industries been removed, what impact could it have on the moth population? Discuss.

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Before industrialization in England, the population of black-winged moths was less than the population of white-winged moths. Due to the Industrial Revolution, tree trunks became darker because of the accumulation of industrial smoke or soot and the reduction in the population of lichens. This provided a camouflaging advantage to black-winged moths, and thus, the population of black-winged moth gradually started to increase. However, white-winged moths' survival was threatened as predators would now find them easily. If industries are removed, the population of white-winged moths should again increase. This showed that evolution is apparently reversible.

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