Guppy love

Reference:
http://www.biologynews.net/archives/2011/11/25/they_call_it_guppy_love_ucla_biologists_solve_an_evolution_mystery.html

Summary; Guppies have evolved over half a million years. The male coloration has changed alot. But still they have an orange patch on their skin. It stayed orange because the female guppies prefer the orange over any other color. The reason that the patch has stayed orange is because if they changed color the female guppies could not want to mate with the males which would cause the guppies to die out.

Critique; I like this article it is really cool to read about this.

Impact; I think that in the distant future guppies will still have the orange patch on there skin.