Quote Originally Posted by 2kdime View Post
I know exactly what that is from

Thats from an animal getting their head between something and cruising/pushing

I have an animal here that will get his face between the litter dam and glass of his cage and likes to push right there.

Ended up with 2 spots just like this.

Its from pushing
And the mystery has been solved!

This was my suspicion, but I didn't actually know for sure.