this post was submitted on 11 Apr 2025
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Science Memes

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[โ€“] MonkderVierte@lemmy.ml 1 points 1 year ago* (last edited 1 year ago) (2 children)

minor mutations that would only provide an advantage in extreme specific scenarios โ€ฆ wouldn't have a chance to be spread.

Most north europeans can digest lactose.

[โ€“] Demdaru@lemmy.world 3 points 1 year ago

Black death IIRC. Milk was one of few easily availabke foods when farmers died off. So, extremely specific scenario.

[โ€“] zalgotext@sh.itjust.works 3 points 1 year ago (1 children)

North Europe is a frozen wasteland where nothing grows for like a third of the year, being able to digest lactose in those months is hugely advantageous. I don't think "winter" counts as an "extreme specific scenario"

[โ€“] MonkderVierte@lemmy.ml 3 points 1 year ago

Hey northern europe is not all Iceland.