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  • pyrflie@lemm.eetoScience Memes@mander.xyzPenguins ❤️
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    8 个月前

    Probably not quite that old. Sexuality probably developed in the Proterozoic as a means of diversifying reproductive burden and offsetting parasites.

    Multicellular life predates this by quite a bit.

    So homosexuality likely dates back to the Proterozoic Era when the sexes where largely dimorphic and prone to shift as needed. Life … uh, finds a way.