You get scars when you are attacked

When you get attacked by something, you may get  wounds. Of course you can lick them to stop the bleeding but the scars would have a day or two to heal depending on what kind of wound you have.

I would love for the scars to stay actually, just as a small asthetic feature

This would be so cool I think! The game would feel a lot more realistic. Another cool feature may be they keep injuries or they show up as they age. Kind of like an old battle wound. 

Nice! It would be so cool to have something like this! And maybe if you have a wound on your nicheling's eye it could possibly reduce it's eyesight due to damaged eyes, if the creature is unlucky.

i like the scarring idea, probably could add different types of scars for different wounds, like a parasite could leave a circular scar, whereas a bearyena attack would leave either a bite mark or a swiping scar. Just some more ideas for a cool suggestion.

Good idea 

YES scars are kick-awesome  ;D