(07-18-2013, 04:48 PM)FreelanceWizard Wrote: Yeah, the potential incest element of tribal Seekers is something I've noticed as well. My guess is that the breeding groups in tribes are fairly large and that any individual miqo'te female of breeding age bears quite a few children. So, assuming 50 females bearing (let's say) 5 children each, the next generation is going to have 250 members, of which a comparatively small percentage are men, and every member of which is a half-sibling (assuming one nunh). With Eorzea being a potentially quite dangerous place, though, I imagine nunhs get successfully challenged by tia or outright eliminated from the breeding pool by external forces fairly regularly.
Assuming that is the case, we still have the issue of those 250 members all being related--again, it'd effectively be the Nuhn's own sons usurping him, and then the only pool of females they have to mate with within their own tribe are their sisters.