[@TheMushroomLord]I cited a secondary article on Inuits for [url=https://www.roleplayerguild.com/posts/5067938]this post[/url] which says largely the same thing. [url=https://scienceline.org/2007/06/ask-dricoll-inuiteskimos/]Here[/url] is the link. It cites dead links, but a quick Google of the authors' names revealed [url=https://anth.la.psu.edu/research/research-labs/jablonski-lab/research/skin-evol]their peer-reviewed paper[/url] on the subject, from a more reliable (and intact) .edu domain.

To respond to your comment proper, this is precisely why I just asked about the timeline, as a matter of fact. The research indicates that these permanent changes to melanin pigmentation do not happen on an evolutionary timespan, but can be visible when a people has been inhabiting the same biome/climate for as few as 500 years. So if the Dark Elves were exiled to their new homes that many years ago or longer...which I must suspect is more than merely plausible for an immortal race...