Talk:Yang Xiao Long/@comment-27614873-20170412015121/@comment-26397825-20170416141020

The genetics surrounding Faunus and Humans is a bit odd in that there is no real "half-Faunus". You may have a Human parent and a Faunus parent, but the genes for either gene are dominant - you either are a human or a Faunus. We don't know if a human that has a Faunus parent can carry a dormant gene that would have their kid be a Faunus, however.

What this means is that if Ruby or Yang were Faunus, they would know about it. The trait wouldn't be repressed or hidden from their knowledge in any way; it'd be something that they and their parents would be aware of because it would develop the same as the trait of a child with two Faunus parents. The fact that neither have traits that have been shown or we have been told about - and in four seasons, a Faunus trait would be mentioned or shown - would mean that even if one of their parents was a Faunus, neither of them are.

In short, neither Yang or Ruby have shown any Faunus traits despite Blake's reveal about being a Faunus being a perfect opportunity for them to reveal "by the way, Ruby/Yang is a Faunus too". Therefore the evidence points to them not being Faunus. We don't know if Taiyang or Raven are Faunus, and we don't know if Faunus genes can pop up somewhere down the track similar to the red hair gene.