The hierarchy of the modern day. Humans have evolved so much that they've turned to have animalistic features... Omegas, the weakest of the groups aren't usually respected and are talked down to a lot. Betas are a neutral species, basically like a normal human. Only female betas can get pregnant and are usually not minded. And alphas are the dominant species. They have most control. All of the presidents have either been beta-alphas or pure-bred alphas.