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Cake day: June 11th, 2023

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  • How does an ‘equal division in spermatogenesis’ result in sperms competing with each other? “The division happens asynchronically; if the tube is cut transversally one could observe different maturation states. A group of cells with different maturation states that are being generated at the same time is called a spermatogenic wave” (from Wikipedia). This doesn’t sound like any chaotic or even violent competition to me? And there is a asynchronous division in spermatogenesis.

    In contrast: “primary oocytes reach their maximum development at ~20 weeks of gestational age, when approximately seven million primary oocytes have been created; however, at birth, this number has already been reduced to approximately 1-2 million per ovary. At puberty, the number of oocytes decreases even more to reach about 60,000 to 80,000 per ovary, and only about 500 mature oocytes will be produced during a woman’s life, the others will undergo atresia (degeneration).” (Also from Wikipedia)

    So you could actually reverse this meme! Spermatocytes have a way to cooperate who goes first because only some are already fertile. On the other hand, oocytes really have to fight for their chance to ever get a go or else be degenerated.

    So why is this meme not reversed? Because people tend to project their own norms and expectations onto everything! And this leads to a lot of wrong assumptions. People arguing about sex and gender often use these concepts of biology and what is ‘natural’. But these are all only really projections of their expectations. Animals are not abiding to our gender norms. There aren’t only male or female animals. Even archaeology has been heavily tainted by sexist assumptions on who has to be a man or woman.

    This meme, just like bad science, is reproducing sexist assumptions. And now people who see this meme will think that there lies some truth within it, because the joke wouldn’t work otherwise. So they’ll assume that sperms really do compete for their opportunity while oocytes negotiate. But this isn’t a fair or correct simplification of what’s actually happening.









  • Well, the only “evidence” in the video is the commentator repeatedly saying that these centipedes are creepy and horrible. But they also mention how important their role in the ecosystem is. So, I think it is a pretty cool animal! But I don’t get why people would be creeped out by centipedes in the first place.



  • From what I have read about this whole issue, it is certainly much more complex. Yes, antibiotics overuse in factory farming is certainly dangerous in that it can create antibiotic resistant strains of bacteria that we at some point cannot control. There are also huge problems with viruses in factory farming. Generally it isn’t a good idea to have so many animals close together, it gives much more opportunities for diseases to spread. Especially because the animals that are used have an incredibly low gene pool and are maximally stressed I’d assume.

    But another opportunity for diseases to jump from animals to humans is wild animals. By destroying more and more natural habitats, people also get in closer contact with wild animals. Like covid 19 most likely spread from wild animals to humans. So, habitat and biodiversity loss are also important risk factors increasing the potential for diseases to cross over to humans.

    In my opinion, we should stop keeping animals altogether, as well as plant monocultures and should try to conserve as much habitats as possible.


  • flora_explora@beehaw.orgtoScience Memes@mander.xyzEvidence
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    7 days ago

    I haven’t seen this meme before but the person in the upper right and middle left look the same. And the rest of the panels look like one other person. Matches with the shoulder strap another person commented on. Probably someone took two different commercials of the same product and stitched them together.



  • Oh sure, you are totally right about that. I didn’t mean for you to feel attacked or anything. I was trying to discuss if the meme actually did play into some lefty norms of its own. Since you already took up this position I just tried arguing from the opposite position. There are definitely a lot of norms in lefty culture as well, what you describe as “absolute” I guess. And imo it is crucial to keep reflecting upon this and be vary of those norms.




  • Hm, maybe that is your own insecurity with the subject speaking? Because the affirmations clearly state that “you don’t need to” and not that you shouldn’t. Obviously it is fine to capitalize on your passion. But often when you are really interested in any topic or good at something, you get told by all sorts of people that you should make money out of it. So there is a certain societal pressure based on capitalism to do so. And these affirmations just state that you don’t need to. But it is with stay at home moms maybe. You sure can stay at home and do the household and care for the kids etc. But you definitely don’t need to and it is important to get the message out that these expectations are highly problematic. Same goes for the expectation to capitalize on your interests.