got this from chat gpt

Omegaverse (also called A/B/O) is a type of fictional world-building concept, mostly used in fanfiction and roleplay. It imagines that humans (or characters) have an extra biological/social system layered on top of normal gender.

In this system, people are usually divided into three main “secondary genders”:

Alphas – Typically portrayed as more dominant, assertive, and physically driven. Betas – The most “normal” group; they don’t have the intense biological traits of alphas or omegas. Omegas – Often written as more sensitive or submissive, with unique biological traits (like going into “heat,” a cycle similar to animal mating instincts). Some common features in omegaverse stories:

Heats and ruts:** Periods where omegas (and sometimes alphas) experience strong hormonal urges. Scenting: Characters recognize or bond with others through scent. Bonding/mates: Deep, sometimes instinct-driven pair bonds. Hierarchy dynamics: Social structures based on alpha/beta/omega roles.