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[-] OsrsNeedsF2P@lemmy.ml 74 points 1 week ago

Isn't there some sort of biological thing where you're more likely to be sexually attracted to your relatives if you don't know they're you're relatives

[-] olosta@lemmy.world 101 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 6 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 27 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 12 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.

[-] Kalcifer@sh.itjust.works 32 points 1 week ago* (last edited 1 week ago)

All I could find on this is something called "genetic sexual attraction" ^[1]^, though Wikipedia contains arguments that it's pseudoscience ^[1.1]^. Here's a Reddit post asking about this. ^[3]^.

Related to this, I also came across the "Westermarck effect" ^[2]^ which appears to suggest that people who grow up together are less likely to be romantically attracted to each other ^[2.1]^.

References

  1. "Genetic sexual attraction". Wikipedia. Published: 2024-10-14T18:46Z. Accessed: 2024-12-09T07:29Z. https://en.wikipedia.org/wiki/Genetic_sexual_attraction.
    1. §"Criticism"

      Critics of the hypothesis have called it pseudoscience. In a Salon piece, Amanda Marcotte called the concept "half-baked pseudoscientific nonsense that people dreamed up to justify continuing unhealthy, abusive relationships".[8] The use of "GSA" as an initialism has also been criticized, since it gives the notion that the phenomenon is an actual diagnosable "condition".

      Many have noted the lack of research on the subject. While acknowledging the "phenomenon of genetic sexual attraction", Eric Anderson, a sociologist and sexologist, noted in a 2012 book that "[t]here is only one academic research article" on the subject, and he critiqued the paper for using "Freudian psycho-babble".

  2. "Westermarck effect". Wikipedia. Published: 2024-09-26T14:09Z. Accessed: 2024-12-09T07:33Z. https://en.wikipedia.org/wiki/Westermarck_effect.
    1. The Westermarck effect […] is a psychological hypothesis that states that people tend not to be attracted to peers with whom they lived like siblings before the age of six.

  3. "How does nature prevent us from feeling sexually attracted to relatives who are objectively sexually attractive? ". Author: "Morgentau7" (u/Morgentau7). "r/TooAfraidToAsk". Reddit. Published: 2024-09-25T17:50:08.227Z. Accessed: 2024-12-09T07:34Z. https://www.reddit.com/r/TooAfraidToAsk/comments/1fpaold/how_does_nature_prevent_us_from_feeling_sexually/.
[-] MonkderVierte@lemmy.ml 9 points 1 week ago* (last edited 1 week ago)

Yeah, that's weird: genetically similiar people are more attractive (as long as it isn't too similiar)(people in stable relationships often look alike) but bigger genetical difference is better.

[-] june@lemmy.dbzer0.com 6 points 1 week ago

Yes, one of the primary components of attraction is familiarity. Also proximity and similarity.

[-] Boxscape@lemmy.sdf.org 1 points 1 week ago

Well there was that movie, Code 46.

this post was submitted on 09 Dec 2024
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