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peppered moth

British  

noun

  1. a European geometrid moth, Biston betularia, occurring in a pale grey speckled form in rural areas and a black form in industrial regions See also melanism

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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One of the exhibition's central stories focuses on the peppered moth, which adapted during the industrial revolution by developing darker colouring to blend in with soot-covered buildings.

From BBC Jun. 20, 2026

A classic example often taught in high school biology classes is that of industrial melanism in the peppered moth, a British species tha looks, well, "peppered," with black dots on a mostly white background.

From Salon Jun. 15, 2025

Commonly used in biology textbooks, the peppered moth is a classic example of evolutionary change in action.

From Textbooks Jun. 9, 2022

Probably the best-known example of urban evolution is the English peppered moth whose coloration darkened in the 19th century in response to coal pollution.

From Scientific American Mar. 25, 2022

This latest addition to the peppered moth tale, he says, “is going to be in the textbooks for decades to come.”

From Science Magazine Jun. 1, 2016

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