Board Thread:Lore Discussion/@comment-72.77.73.35-20140403144840/@comment-3524435-20140403151447

Their exact relation to the Hist is still a bit of a mystery. However I would suggest that if there is a direct evolutionary link between the two, it likely involves magic.

It's also possible that the Hist created the Argonians, and that they aren't actual ancestors to the lizard people. Or their relationship is more symbiotic, but there's no genetic link.

Whatever the case is, I suspect that some degree of magic is involved.