Peppered moth
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The peppered moth is a moth of the family Geometridae. It is night flying, and found mainly in temperate regions of the northern hemisphere. Peppered moth evolution is an example of population genetic
Biston betularia male
Peppered moth female
Biston betularia ♂
Biston betularia ♂ △
Melanism
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Melanism is a congenital high level of melanin in an organism resulting in dark pigmentation.
Peppered moth
…on the lower half of the branch, 37% were on tree trunks, mostly on the north side, and only 12.6% were resting on or under twigs. There are several melanic and non-melanic morphs of the peppered moth. These are controlled genetically. A particular colour morph can be indicated in a standard way by following…
Black serval (Leptailurus serval)
Black eastern grey squirrel (Sciurus carolinensis)
Melanistic guinea pigs (Cavia porcellus) are rare, and are used in rituals by Andean curanderos.
A melanistic European adder (Vipera berus) compared to a normal-colored adder