melanism
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Boa `Black,increased melanism gene` Boa imperator Royalty Free Stock Photo
Eastern Grey Squirrel with melanism Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Industrial Melanism in the Peppered Moth
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
Light brown king penguins with melanism on South Georgia. A genetic mutation causes unusual brown plumage colouration. Royalty Free Stock Photo
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.

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