A European moth of woods and gardens, which is typically white with black speckling. In industrial areas sooty brown forms predominate as a result of industrial melanism.
Biston betularia, family Geometridae
 Example sentencesExamples
-  Industrial melanism in peppered moths has been a worldwide textbook example of natural selection.
 -  The ‘classic’ textbook example of natural selection says that most peppered moths were light-coloured in the early 1800s.
 -  A recent example of this can be seen in colour changes in the British peppered moth, which is nocturnal, resting during the day on surfaces such as tree trunks.
 -  For most of the twentieth century the only well-known example of evolution in action was the case of peppered moths in industrial England.
 -  Industrial melanism in peppered moths has been studied most intensively in Britain.