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[-] olosta@lemmy.world 97 points 1 week ago

Second degree cousins is not that close though. If every generation has three children, that's 27 persons. I thinks that for most of human history excluding second degree cousins from the acceptable partners pool would have been impossible. Communities were not that big.

[-] spankmonkey@lemmy.world 14 points 1 week ago

Second degree cousins

I can't stop laughing.

[-] Enkrod@feddit.org 7 points 1 week ago

That's how it's phrased in many other languages, german for example.

[-] BruceLee@sopuli.xyz 5 points 1 week ago
[-] HonoraryMancunian@lemmy.world 8 points 1 week ago

And if my maths is correct, you only share on average 12.5% of your DNA with them

[-] mEEGal@lemmy.world 25 points 1 week ago

your math may be wrong, because we have very similar genomes, even compared to complete strangers. hell, even between some species.

[-] HonoraryMancunian@lemmy.world 21 points 1 week ago

Well, yes. I meant in the sense we share on average 50% with each parent/siblings, 25% with grandparents, etc. I should have said genetics instead of DNA.

[-] Knuschberkeks@leminal.space 11 points 1 week ago

iirc 90% of dna is the same even between humans and plants. (Don't quote me on that)

[-] porous_grey_matter@lemmy.ml 5 points 1 week ago

Of the variable alleles, not all DNA

[-] Danquebec@sh.itjust.works 1 points 1 week ago

Groups often came together to party and marry people.

There are even rules, like exogamy is common.

this post was submitted on 09 Dec 2024
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