Why don't NE Asians have the same hair and eye colour variation as Europeans?

[Tooting Carmen]

Why don't Japanese, Koreans, Mongolians and Northern Chinese have the same variation in hair and eye colour that Europeans have, even though many of them live in a similar climate and latitude? While the uniform darkness of Black Africans and Pacific Islanders/Aboriginals and mostly uniform darkness of Gulf Arabs and South Asians can be explained by evolutionary adaptation to climate, this isn't really the case with Northeast Asians. So why didn't they develop the same variety of traits as Europeans did?

[Tooting Carmen]

bump

[Kyp]

Tokyo is as northern as Algiers. Just saying.

[Rgvgjhvv]

I've never thought about it. More humans have dark hair than not though. So I think Northern Europe went through some sort of mutation to produce light hair. I think it's less about East Asia, and more about Europe. Europe is the weird one.

[Roy]

Because they were too far from that place where those specific mutation occured for the first time?

[Roy]

Tokyo is as northern as Algiers. Just saying.

And the northernmost big populated Hokkaido island is as northern as Spain. The climate is much different (harsher).

[Tooting Carmen]

I've never thought about it. More humans have dark hair than not though. So I think Northern Europe went through some sort of mutation to produce light hair. I think it's less about East Asia, and more about Europe. Europe is the weird one.

But it's not just Northern Europe though. Even countries like Greece and Portugal have infinitely more variation in hair and eye colour than anywhere in Asia does.

[Tooting Carmen]

And the northernmost big populated Hokkaido island is as northern as Spain. The climate is much different (harsher).

Harsher in what sense?

[Rgvgjhvv]

But it's not just Northern Europe though. Even countries like Greece and Portugal have infinitely more variation in hair and eye colour than anywhere in Asia does.

Yes but those could have migrated south who knows how long ago.

[Samnium]

I've never thought about it. More humans have dark hair than not though. So I think Northern Europe went through some sort of mutation to produce light hair. I think it's less about East Asia, and more about Europe. Europe is the weird one.

Europeans but I would add also other West Eurasians (like Middle Easterners, North Africans, Caucasians...) are really phenotypical outliers when it comes to pigmentation yeah.

I think that East Asians can have some nuance in brown pigments but you won't see green/blue/gray eyes (including light eyes with central heterochromia, light brown or yellow) and also dark hazel/amber, definitely.