Funnily enough the densest population is living on the docks of the coldest city in Skyrim- Windhelm.
Obviously meaning that they are in-fact warm blooded. Which I think Bethesda were trying to show in the argonian's new appearence in Skyrim,
as they resemble the prehistoric velociraptors both from popular media and in historical context (now that they have the addition of feathers).
hmm true. As I said earlier, I didn't even know Windhelm HAD a dock, so I can believe it.
and yes, i did notice they look like dinosaurs at times, especially the female argonian in the riften inn. Her face just reminds me of a T-rex