Black death IIRC. Milk was one of few easily availabke foods when farmers died off. So, extremely specific scenario.
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MonkderVierte@lemmy.ml â¨3⊠â¨weeks⊠agominor mutations that would only provide an advantage in extreme specific scenarios
Most north european can digest lactose.
Demdaru@lemmy.world â¨3⊠â¨weeks⊠ago
zalgotext@sh.itjust.works â¨3⊠â¨weeks⊠ago
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 donât think âwinterâ counts as an âextreme specific scenarioâ
MonkderVierte@lemmy.ml â¨3⊠â¨weeks⊠ago
Hey northern europe is not all Iceland.