this post was submitted on 21 Apr 2026
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Doppelgängers Don't Just Look Alike—They Also Share DNA. New research finds genetic and lifestyle similarities between unrelated pairs of “virtual twins” (www.smithsonianmag.com)
submitted 2 days ago by RegularJoe@lemmy.world to c/science@lemmy.world
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[–] vaultdweller013@sh.itjust.works 2 points 1 day ago

First cousins not having kids is generally good since it prevents the founder effect from getting too bad or long term inbreeding like with Charles of Spain or really any European royal.