so, my own Race:
well to be clear, he actually is (from now on) a unique individual, ones he was a race from somewhere far and deep in the galaxy, a race that is likely not found on the planet, but he was genetically altered to a extend that he no longer is part of his old race, meaning he is a singular entity and the start of a new race if he ever gets children.

name: unknown (if ever need come to name it: Kariver)
home world: unknown
appearance: white skinned, blue hair, blue glowing eyes with no eye white or visible pupil, humanoid in appearance further

lifespan: trough the exact span is not known, it is clear that it is double that of humans.
aging: not much details are known at this point but it is clear that they age half the speed of that of humans, being 20 years old but having the body of a 10 years old.
childbirth: currently there is only one male and he seems to be able to conceive children as any other race, simple sex, if new children appear with females then I will add more data for the females future
culture: non known
language: this race seems to be able to understand any language and writing, as that other races will hear him speak in their language.

biology: this race has a unique skin pattern what comes with its own unique trait (see powers), their eyes turn red when agitated or angry, the stronger the emotion, the brighter also the facial features tend to change considerately when angry into something pretty skull like and frighting, the skin is also able to turn as black as pure darkness, making them hard to see in dark area's (and giving the eyes if opened a scary ghost like vibe), the bodys are in general agile, fast and strong but more into normal athletic levels, also they have a sharp sense of hearing, especially with eyes closed, the race has 3 hearts, one where humans have them, one mirroring the human heart in the right chest and one smaller (but equally strong) hidden in the neck, right behind the lower part of the skull, the hearts work separately and the race can live just as fine with only one working heart.
powers: they have a high recovery rate, protecting them from scarring, poisons and sickness, but if a heart gets 'killed' the person falls into a death like state, preventing the heart from ever recovering, for a few minutes, after that they wake up and the wounds inflicted during this event heal at a slower rate and with normal scarring chance.
if beheaded and the neck placed heart still lives, they will be able to live for one day before the brain gets problems with the lack of oxygen, the body dies on the spot.
their skin has a hidden trait even they dont know about in general where they may mutate the skin when exposed to certain types of danger, often this can result in a absorption power, devouring the danger and adding it to the persons energy, only one thing can be learned to devour by this and not always will this be a permanent power, also it can have its own risks and downsides that can be either permanent or just once, the risk can be permanent even if the power is not, but it can also be that the power is permanent and it never has a risk.

history: this race was made by someone that genetically altered an other race into this state, not much is known beyond this