Weird that they’re only probably sure they know how reproduction works.

    • Wogi@lemmy.world
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      3 months ago

      At some point if you go back far enough, we’re all the direct descendants of the first two fish who decided to fuck.

      • gid@lemmy.world
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        3 months ago

        Your comment spawned a delightful train of thought where I imagined all the other fish trying, and failing, to successfully fuck before these two fish stumbled on how to do it.

      • JollyG@lemmy.world
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        3 months ago

        It’s the most recent common female ancestor of all humanity, as determined by mitochondrial DNA.

        Or put another way. If everyone traced their family lines back through their mothers, mitochondrial eve would be the first point where all those lines converged on a single woman

        • gid@lemmy.world
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          3 months ago

          It helps me to remember that mitochondrial Eve isn’t a fixed individual, as well.

        • Flying Squid@lemmy.worldOP
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          3 months ago

          There’s also a Y-chromosomal Adam, but they lived many thousands of years apart. That seems very counterintuitive, but when it is explained to you by someone who knows what they’re talking about (i.e. not me), it does make sense.

          • gid@lemmy.world
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            3 months ago

            Yeah when it’s explained to me I realise “of course, that makes so much sense”.

            And then I forget again, so I’m all Keanu-Reeves-whoa-face next time I think about it.

      • gid@lemmy.world
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        3 months ago

        Mitochondrial Eve is just the most recent common female ancestor. So her mom would also be a common female ancestor, but not the most recent one.