Polymorphism (biology)



![The white morph of the monarch in Hawaii is partly a result of apostatic selection[14]](/uploads/202502/03/Albino_monarch_butterfly0613.jpg)
Polymorphism in biology and zoology is the occurrence of two or more clearly different morphs or forms, also referred to as alternative phenotypes, in the population of a species. In order to be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating).