The geneticist Jim Wilson, at the University of Edinburgh, was shocked by the frequency he found in the U.K. Biobank, an anonymized research database: One in 7,000 people, according to his unpublished analysis, was born to parents who were first-degree relatives—a brother and a sister or a parent and a child. “That’s way, way more than I think many people would ever imagine,” he told me. And this number is just a floor: It reflects only the cases that resulted in pregnancy, that did not end in miscarriage or abortion, and that led to the birth of a child who grew into an adult who volunteered for a research study.

Most of the people affected may never know about their parentage, but these days, many are stumbling into the truth after AncestryDNA and 23andMe tests.

    • Riven@lemmy.dbzer0.com
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      8 months ago

      That dude sounds like he’s projecting. You’re just trying to clear up something that matters when talking about these sort of topics.

      • DarkThoughts@fedia.io
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        8 months ago

        Yeah, it’s like those aggressive pedo hunters who DEFINITELY aren’t pedophile, but then get caught with a massive CP collection or during an attempt to woo a little kid.