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Cake day: June 23rd, 2023

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  • Seleni@lemmy.worldtoScience Memes@mander.xyzChicken vs Egg
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    2 months ago

    That depends on what you mean.

    Did a giraffe stretch its neck longer and longer, and then pass that long-necked gene onto its kids? No.

    Can an embryo that gets a random mutation while developing in the egg/womb pass it on to their children? Yes.

    This gets a bit more complicated if you really dig into it, though. Environment does change the expression of genes, and that particular sequence of genes that have been activated/shut-off/whatever can be passed on to children too.

    Hence why children who were born to two shorter parents will often grow much taller than them if given much better nutrition. Or why obesity often shows up chronically in families that were poor or had limited access to healthier foods in other ways; their bodies had adapted to grab and store every extra calorie they could to guard against starvation, and unfortunately shutting that gene expression off naturally takes multiple generations.




  • According to the CDC, 1 in 3 women in the US have been victims of sexual harassment or assault. And honestly, given how underreported those sorts of stats are, it’s probably higher.

    Another hypothetical question was posed to women a while ago: if all the men on the planet got whisked away (not killed, just sent to an awesome men-only vacation planet or something) for 48 hours, what would you do?

    The answers were overwhelmingly things like ‘go for a walk at night’, ‘take a jog with my earbuds in’, ‘go to the gym’…



  • Some people need a very structured, simple, well-defined worldview in order to function. Sort of like a computer has to follow a set program or it bluescreens.

    ‘This person coming towards me is a man. I can tell by his bowler hat and dapper suit. Therefore the correct action is to say ‘good morning sir, nice weather today’.’ And ‘This person coming towards me is a woman. I can tell by her dress and long hair and makeup. She is married based on the ring I see. Therefore the correct action is to say ‘good morning, ma’am, nice weather today’.’

    And so on.

    A person not presenting clearly as either gender, or isn’t the gender they’re expecting, means the ‘script’ no longer works. They no longer feel sure of what to do, and that lack of control of the situation makes them panicked.

    Really, a lot of this, and conservatism in general, comes down to simple structure and control, so these people feel they always know what to do and where they stand.

    Because our society is a social contract, and to act wrongly means you get ostracized from society. In ancient times that was practically a death sentence, and I don’t think these folks have ever gotten over that. They fear becoming the ‘outsiders’, left to the wolves and lions.


  • The reason birds are going extinct is humans. Hunting, habitat loss, and climate change are far, far more impactful than cats. As much as they kill, cats shouldn’t even be making a dent in bird populations in most of the world (yes, there are islands and a few microbiomes where they have an outsized impact, and that is an issue that needs to be addressed).

    Cats only have such a big impact because we drove those species of birds to the edge of extinction already.