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[–] 124 points 1 month ago (1 child)
  • [–] 54 points 1 month ago* (9 children)

    He also did an experiment where he subjected butterflies to an unpleasant smell so they learned to avoid it. Not only did the butterflies avoid it but their offspring avoided it too. And those butterflies offspring, down several generations.

    It's really groundbreaking science. Is it inherited memory? I don't think science has an explanation for how it could be possible.

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  • [–] 10 points 1 month ago* (last edited 1 month ago)

    The same thing happens with rodents. They gave lady rodents a lemon smell (citruis isn’t pleasant for them) and it caused them to have a kink for lemon smell for like 3 generations. Crazy stuff.

    As for an explanation, Epigenetics is where you want to look. Its a fairly new field, few dozen years old, and it studies methylation of DNA. Methylation (addition of a methyl group to the exposed end of DNA) or demethylation (removal of a methyl group) happens in response to experiences while alive, and changes how genes are expressed. Doesn't change the DNA itself, but because the methyl groups are chemically bonded to the DNA some of them carry through the reproductive process. This means some of those changes are passed down. The epigenome isnt passed down completely, about half-2/3 of it is reset between generations, iirc, but what is passed down can cause stuff like this “inherited memory”.

    The epigenome is really neat, and as far as we know, everything with DNA has one. In humans, for just one example tjat we know of, it can impact fat storage. If a person lives through starvation conditions, the bodies of their offspring will prefer to pack on weight because they think they are being born into famine. When researchers studied descendants of major famines (starting with those born during the famine), they found that those methylation points didn't reset for 3-4 generations. Thats insane! Thats a hundred years! Its also why as identical twins age, they can start to look more and more different, and they -can- actually be DNA matched if you have the tools to look at the epigenome, because no two adults will have the same lived experiences.

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  • [–] -1 points 1 month ago (4 children)

    The "also" is unnecessary, that's the experiment he did.

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  • [–] 1 point 1 month ago* (last edited 1 month ago) (3 children)

    It's not mentioned in the post. He didn't plan it as part of his original experiment. After his experiment was a success he noticed that his family all had migraines. He decided to try to test if memories could be inherited. It was a separate test the following year with new caterpillars.

    Edit: typo

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  • [–] 0 points 1 month ago (2 children)

    What was the original experiment again?

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  • [–] 51 points 1 month ago (2 children)

    When was this? Thought that got proven years ago.

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  • [–] 23 points 1 month ago* (last edited 1 month ago)

    Summary: He took larvae (caterpillars), split them into two groups, and offered them sugar water and sugar water with lavender scent in it. The ones feeding on the lavender scent were then given a mild electric shock that make them vomit so they associated it with something bad. Then in their adult phase he offered the same two choices and the plain sugar water group went 50-50 to the choices whereas the shocked/lavender group went to the plain sugar water 80% of the time.

    While looking into it I found references to studies on this dating back to at least 2008, studies on larval neural changes and fruit fly studies. They studied memory retention in moths also.

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  • [–] 16 points 1 month ago

    I never stop loving science and the scientific method. One of the last things that always makes me happy.

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  • [–] 13 points 1 month ago (1 child)

    We knew this though. Still ..never a bad idea to confirm with your own findings..
    The fascinating thing is the caterpillar turns into goo in the pupa and still retains memories.

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  • [–] 7 points 1 month ago

    Feels like Butterflies are just self isekaiing caterpillars lol.

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  • [–] 21 points 1 month ago (21 children)
  • [+] [S] -24 points 1 month ago (16 children)
  • [–] 28 points 1 month ago (15 children)

    The better question is why do you exclusively bring reddit content to lemmy/piefed?

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  • [–] 0 points 1 month ago (14 children)
  • [–] 5 points 1 month ago (13 children)

    Mmmm yes exactly what Lemmy needs, more sourceless text on images

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  • [–] 1 point 1 month ago (12 children)
  • [–] 4 points 1 month ago (11 children)

    Does it? You'd rather scroll Facebook slop than do something else?

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  • [–] 0 points 1 month ago (10 children)

    Yes, at least there is something to discuss...

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  • [–] 2 points 1 month ago (9 children)

    I'll just create a bot that posts differents colors every 10 minutes and and we can discuss the colors.

    More content is better right?

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  • [–] 1 point 1 month ago (8 children)

    If the colors are in the top 100 of reddit, sure.

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  • [–] 1 point 1 month ago (7 children)

    Reddit should not be your gauge for what content is worth consuming especially in 2026. Set your standards higher.

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  • [–] 1 point 1 month ago (6 children)

    If I set my standards higher I would definitely not be on lemmy. As shit as reddits leadership is and the amount of ads, and all the other problems, the content is much better than here.

    Like no comparison. Even soccer, a sport with a billion fans, doesn't have a decent community here. Let alone formula1, woodworking, chess and a number of other hobbies. Thank God I like Linux, at least that is active. But not even a ThinkPad community, and I'm sure half of the people here are on thinkpads...

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  • [–] 1 point 1 month ago (5 children)

    If you like soccer so much, why are you moving the goalposts? We're talking about garbage posts like this here

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  • [–] 1 point 1 month ago (4 children)

    I like this garbage post better than "nothing". Because there is a lack of content.

    PS: There are no goalposts in soccer, which you maybe would know if there was enough soccer content on lemmy

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  • [–] 1 point 1 month ago (3 children)

    I have a sneaking suspicion that this is your bot.

    PS: There are no goalposts in soccer, which you maybe would know if there was enough soccer content on lemmy

    I am willing to pretend I didn't see this if you want to quickly Google that and subsquently come up with a new insult.

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  • [–] 1 point 1 month ago (2 children)

    You're right to question my bot. That was a genius idea!

    We really need more soccer content on lemmy, people out here really think soccer is about goalposts...

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  • [–] 2 points 1 month ago

    No link to anything at all?

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  • [–] 0 points 1 month ago* (last edited 1 month ago) (2 children)

    Just image? No link to any article? WTF is this? 4Chan?

    Fake and gay. User blocked.

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