Talk:Luna/@comment-24670104-20160515153010/@comment-27404483-20170220022937

I think that's a genetics thing. Brunette is a dominant gene while blonde is a recessive gene so blonde is in this timeline a very rare hair color, which is why so few grounders have it.

When you think about it there aren't a lot of blonde sky people either, it's simply because blonde is a recessive gene.