Biology

Native Peaceatians stop aging biologically at the age of 30, which is also when they are considered to be an adult. They indefinitely remain in their 30 year old bodies, Their bodies won't deteriorate over time, which means they can't be injured or get sick, a knife trying to cut into a Peaceatian's skin would just bounce off. They are completely immune and invulnerable and essentially incapable of dying, through any means.

Romantic Attraction

Peaceatians feel little to no attraction, causing the population to remain slow-growing. Reproduction is possible, but most babies are born through random spawning. The generally accepted theory by Peaceatian scholars as to why they do not biologically reproduce or form romantic bonds is that they are disinterested in romance because the species hasn't had an evolutionary pressure to continue existing. Despite this, they feel other emotions perfectly fine.

Appearance

Their bodies do not follow a fixed blueprint, instead their appearance experiences a randomized shift until they reach the age of 30, at which their bodies will have accepted their current physical form. Shifts happen most often from ages 10-20, shifts can range from extreme changes like temporary hearing loss to the change of one's hair color. Peaceatians do not have any control over these shifts and are purely randomized. Peaceatians can come in all kinds of colors and aren't limited by evolution unlike other species.

Sustainibility

Peaceatians don't necessarily need to eat or drink to survive, but many Peaceatians choose to (by drinking wine) to feel something. They absorb everything they eat, meaning there's no need to excrete or urinate. Peaceatians don't really need to sleep, but they will notably get bags under their eyes if they go a prolonged amount of time without any rest. No other side effects from not sleeping have been noticed.

The Mind

Peaceatians continue maturing the older they get, and after 30 they stop maturing altogether. The rate of learning and remembering is faster at ages before 30, then it starts stagnating. A biological trait of adult Peaceatians is that are passively calm and aren't easily angered, unlike younger Peaceatians who are by nature more condescending and on-the-nose. Adult Peaceatians can still be somewhat condescending or sarcastic, but it's more reserved for when with acquaintances.

Younger Peaceatians

It's believed that younger Peaceatians are more brash because of their 'god-like' state. They can't die, so they naturally believe they're better than other species. Over time though, adults come to realize that just because they have an biological advantage over others doesn't mean they're better than them, per se.