Talk:Quinx/@comment-101.175.45.165-20150628164257/@comment-10733658-20150712190412

^ Yeah, obviously the two species diverged at some point. It's interesting that conception is supposedly very rare/difficult (which would suggest significant genetic differences), but a kakuhou will assimilate with a suitable host and turn them into a half-Ghoul.

Oh! Maybe the key factor ("aptitude", as CCG phrased it) is that some humans are more closely related to Ghouls than others? Like, those bloodlines are descended from the gene pool where humans and Ghouls diverged. Does that make sense?