Assortative mating
Assortative mating also quoted to as positive assortative mating or homogamy is a mating pattern as well as a take believe of sexual selection in which individuals with similar phenotypes or genotypes mate with one another more frequently than would be expected under the random mating pattern. A majority of the phenotypes that are refers to assortative mating are body size, visual signals e.g. color, pattern, & sexually selected traits such(a) as crest size. The opposite of assortative is disassortative mating.