u/Inevitable-Level-687

They seem to be up pretty damn high but if they're as high up as they seem to be, they wouldn't possibly be surviving very well - above a certain altitude your body starts dying very slowly from lack of oxygen.

And yet, IIRC the Throat of the World is the second highest peak in all of Tamriel. Either Tamriel's mountains in general aren't very high or there's some weird stuff going on up there.

(I know the real answer is that the game devs who made the lore know nothing about high altitude living, but go with me here, let's pretend they knew what they were doing here.)