Sexual Selection in Butterflies

Sexual selection is a natural selection among organisms in which specific genetic traits are preferred for reproduction. Sexual selection is special because it may cause domination of a desired trait like colorful feathers on a peacock, wings on a butterfly or even loud roars in lions.

There are two mechanisms of sexual selection: intersexual and intrasexual.
Intrasexual Selection involves characteristics which affect the outcome of competition among members of one sex for access to members of the other sex.
Intersexual Selection would influence the evolution of secondary sexual characteristics which determine the relative "attractiveness" of members of one sex to the other sex.

In this case, the developmental evolution of wing patterns lead to the diversification of butterfly species which intersexually, allows them to become more attractive when it comes to mating.

Sexual selection in Peacocks

Before

After

I decided to model sexual selection as a evolutionary process for my model.  I modeled the process by drawing the peacock before and after the evolutionary process took place. Before the evolutionary effect, the peacock had white feathers and after the process it had vibrant green and blue feathers. The white feathers were too bright for the peacocks and white peacocks were easily spotted by predators, therefore, many males would chose the colorful peacock over the white because they were more appealing. This made sexual selection a selective process as opposed to random since the males had to chose which female they would want to mate with.