Polymorphism (biology)
Videos
In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species. To be classified as such, morph
Light-morph jaguar
Dark-morph or melanistic jaguar (about 6% of the South American population)
The white morph of the monarch in Hawaii is partly a result of apostatic selection.
Darwin's finches by Gould
Melanism
Videos
Melanism is a congenital high level of melanin in an organism resulting in dark pigmentation.
Polymorphism (biology)
…Light-morph jaguar Dark-morph or melanistic jaguar (about 6% of the South American population) In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also…
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