sitting in the classroom, following the lesson as the teacher tells us about the "sigmas" They are even stronger and tend to be more agressive then alphans, which is why they get transitioned to mostly normal alphas as soon as they get discovered, wich happans normally at the age of 10-12. The transition is forced by law in those cases since its concidered to be safer. Most of them keep it a secret since sigamas are not well seen in society...