• Hellfire103@lemmy.ca
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    3 months ago

    Some of them eat oysters, or so I’m told. They lack a brain and centralised nervous system.

    • Ms. ArmoredThirteen@lemmy.ml
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      3 months ago

      One of my exes is very strictly vegetarian and will eat oysters. Oysters lack the capacity to consciously be aware of themselves or the environment, effectively they’re a water pump made out of meat, and they’re one of the most sustainable foods we can make leading to less planetary harm than a lot of plant crops even. It’s definitely a controversial opinion though

      • x4740N@lemm.ee
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        3 months ago

        When talking about the capacity to consciously be aware of themselves (the oysters) how is that actually measured and what do they look for

        How are we sure they are not actually self aware through some other unknown mechanism

        • Ms. ArmoredThirteen@lemmy.ml
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          3 months ago

          I am not a biologist but my understanding is that largely has to do with a lack of central nervous system. It would be like asking if a heart is aware of itself. It can autonomously react to things like low oxygen but that isn’t because those signals go anywhere that makes a decision it’s more like a chemical/biological Rube Goldberg machine. If you really want to get down to it though I don’t think we can know for certain just make educated guesses, and imo oysters are even less likely to have any form of consciousness than a lot of plants or mushrooms

      • MonkderVierte@lemmy.ml
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        3 months ago

        Oysters lack the capacity to consciously be aware of themselves

        Fish too btw, as far as we know. Lizard brain is an evolution of fish brain, they are basically biological automata.

        Makes one think, live getting on land was it getting into hard mode.

        one of the most sustainable foods we can make leading to less planetary harm than a lot of plant crops even

        I did read about damaging effects of oyster farms though, the ones with cages, because of their poop/piss(?). But sure, because hundreds in one place.

        • Ms. ArmoredThirteen@lemmy.ml
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          3 months ago

          I did read about damaging effects of oyster farms though

          Yeah no monoculture farm is without it’s damage, for sure, but oysters are real low on the list. They are filter feeders so don’t need any additional food source or fertilizer you just seed them somewhere and pull them out as needed. A single one filters something like fifty gallons of water a day, capture carbon for their shells, and they’re incredible at pulling heavy metals out of the water but that’s not something they’re utilized for at scale afaik because then humans wouldn’t want to eat those ones

        • zeekaran
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          3 months ago

          Your fish science is wildly outdated.