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human
[Skyrim] Is there any Biological differences between Nords, Imperials, Red Guards and Bretons (aside from their daily powers)?

Is there any Biological differences, or is this similar to Asians, Caucasians, Africans etc...?
gpt
Imperials, Bretons and Nords all descend from the Atmorans, the humans who came to Tamriel (specifically Skyrim) from the continent of Atmora during the Merethic Era.

Nords descend from those Atmorans who remained in Skyrim.

Imperials descend from those Atmorans who ventured south into Cyrodiil, becoming enslaved by elves before eventually managing to free themselves under Saint Alessia. This makes them physically much like Nords.

Bretons descend from those Atmorans who ventured west towards High Rock, and interbred with Elves, giving their blood a more magical nature than their cousins the Nords and Imperials.

Redguards aren't related to the Atmorans at all, and came to Hammerfell from Yokuda during the First Era, after the other three had already begun to diverge. This means they are very different from Atmoran stock.