Moth, melanism and clean air.
D000220:Adaptation, Biological; D000397:Air Pollution; D000818:Animals; D004739:England; D005828:Genetics, Population; D007220:Industrial Waste; D007313:Insecta / Q000502:physiology*; D008543:Melanins; D010858:Pigmentation; D011156:Population Density
D007220:Industrial Waste; D008543:Melanins