I read somewhere that the redguards don't have the same blood as Bretons or Nords. I mean its obvious that they all possess physical differences but what I was reading made it sound like the redguards were bound by some divine genetic right of magic or something. Likely because they don't have ancestral geneology in Atmora.
Another peculiar thing about them is that Dwemer robots are known to come alive in parts of Hammerfell, probably all of Hammerfell. Curious, I think. Does anybody have any interesting secrets about them?