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Peppered moth, carbonaria type on the left, and typica on the right. Kettlewell's experiment was a biological experiment in the mid-1950s to study the evolutionary mechanism of industrial melanism in the peppered moth (Biston betularia). [1][2] It was executed by Bernard Kettlewell, working as a research fellow in the Department of Zoology ...
Henry Bernard Davis Kettlewell (24 February 1907 – 11 May 1979) [ 1] was a British geneticist, lepidopterist and medical doctor, who performed research on the influence of industrial melanism on peppered moth ( Biston betularia) coloration, showing why moths are darker in polluted areas. This experiment is cited as a classic demonstration of ...
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism. Later, when pollution was reduced, the light-coloured form again ...
Scalable Vector Graphics (SVG) is an XML -based vector image format for defining two-dimensional graphics, having support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium since 1999. SVG images are defined in a vector graphics format and stored in XML text files.
Caterpillar of Papilio machaon. A monarch butterfly (Danaus plexippus) caterpillar feeding on an unopened seed pod of swamp milkweed. Caterpillars (/ ˈkætərpɪlər / KAT-ər-pil-ər) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the ...
The peppered moth (Biston betularia) is a temperate species of night-flying moth. [1] It is mostly found in the northern hemisphere in places like Asia, Europe and North America. Peppered moth evolution is an example of population genetics and natural selection. [2] The caterpillars of the peppered moth not only mimic the form but also the ...
The peppered moth, Biston betularia, is justly famous as an example of a population responding in a heritable way to a significant change in their ecological circumstances. E.B. Ford described peppered moth evolution as "one of the most striking, though not the most profound, evolutionary changes ever actually witnessed in nature".
Trichodezia albovittata, the white-striped black moth, is a moth in the family Geometridae. It is found from Alaska to Newfoundland and Labrador, south in the east to North Carolina and in the west to northern California. [ 3] The wingspan is 20–25 mm. Adults are on wing from April to September. The larvae feed on Impatiens species.