Board Thread:Off Topic/@comment-24993958-20160601181154/@comment-26397825-20160602225942

Yes, Blu3. It's a 50/50 chance for the Faunus traits to manifest on a child that is the result of a human/faunus union, so it is plausible for only one child to manifest as a faunus. The gentics boil down to either you are a faunus or you arent, and you will always be the same type of animal as your parent. If you have two different faunus types as your parents, you can take after either at random.

And I believe they said something more along the lines of "of course Ruby is the leader" but I can't remember where they talked about RNJR.