• Tim_Bisley@piefed.social
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    7 hours ago

    They can drink salt water when times are tough but it still wouldn’t be good to drink it for a sustained amount of time.

    • ZombiFrancis@sh.itjust.works
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      3 hours ago

      Yes, but often as a result of a long diet with chronic dehydration from a kibble based diet.

      The moisture cats consume is from their prey. The blood and juices of rodents and birds hydrate cats.

      Canned/wet food cats tend to wind up with thyroid issues instead of kidney. (Well, sorta: there’s evidence the BPAs in cans and mercury from fish as a reason for that.)

      • Zetta@mander.xyz
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        2 hours ago

        Well this is partially true. I’m pretty sure even a cat on a perfect diet will still have very high chances of developing chronic kidney disease in old age because it is just common in cats.

        Could be wrong but my understanding is that It’s partially because their kidneys are so efficient that they often get kidney disease in late age. They’re always under a super high workload.

    • general_kitten@sopuli.xyz
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      4 hours ago

      yep, usually the first organ to fail in old cats, so the superpower seems to come with a drawback. edit: removed inaccurate statements

  • stupidcasey@lemmy.world
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    6 hours ago

    I could say that is an impressive evolutionary feat, but instead I’ll say: Evolution, what the hell is wrong with you? You do know we all came from the sea, you should know 70% of the earth is covered in salt water, why did you think it was ok to devolve the ability to drink salt water but retain the requirement to drink water? Are you Ok? Do you need Jesus?

    • general_kitten@sopuli.xyz
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      5 hours ago

      kidney disease is one of the most common ways cats die of old age so super efficient kidneys dont come without a tradeoff. Cats have evolved to live in very arid enviorments where saltwater is all that is availible so the tradeoff might have been worth it. ability to drink saltwater only would work without kidneys being prematurely overstressed would be likely if animals had higher normal salt content but that would mean they would need a lot higher salt intake making living inland harder.

        • general_kitten@sopuli.xyz
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          5 hours ago

          but whales like all sea creatures have high bodry salt content making the osmotic pressure difference small

            • general_kitten@sopuli.xyz
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              5 hours ago

              if humans would be adapted to that it could work but it would mean without modern technology it would be close to impossible to survive without access to saltwater (most of human habitable land area)

              • stupidcasey@lemmy.world
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                5 hours ago

                Well we were already adapted for it or at least our ancient ancient fish ancestors were we lost the ability that’s my core point, salt isn’t exactly rare and other minerals can be used to reduce osmotic pressure, but besides that 40% of all people live near salt water and ~30% of all land animals live near salt water so I wouldn’t think that would be enough to lose such a valuable resource as water, I am obviously wrong since we can’t drink salt water but it still feels like a miss step.

                • general_kitten@sopuli.xyz
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                  5 hours ago

                  i guess in the case of humans we would have evolved for a long time to mainly eat fruit that has a high water content with low salt content possibly even being most of needed water intake. after starting to eat meat perhaps there hasnt been enough evolutionary pressure to be able to regain saltwater consumption ability

  • ohwhatfollyisman@lemmy.world
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    6 hours ago

    we’re going to need to evolve this superpower if we want to avoid my grandkids and your grandkids killing each other in the global water wars.

    • burntbacon@discuss.tchncs.de
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      6 hours ago

      Dehydration is a common cause for cats to be ‘ill’ and brought to the vet,* so it could be that their piss reeks because they are having to concentrate it so much in the first place.

      *source: a dimly remembered conversation with a vet friend when I asked her why she was adding water to the already wet food for her cat. She said her cat could never be encouraged to drink enough, so it was her way of staving off the annoyance of giving iv fluids to her own animal someday.

      • Komodo Rodeo@lemmy.world
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        3 hours ago

        That makes sense, I wonder if it’s the case and how common it is. I’ll have to ask a vet tech that I know.

      • jamesjams@lemmy.world
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        5 hours ago

        It’s absolutely a thing, I’ve had several cats in my life look nearly on the brink of death before basically forcing them to drink or eat turned them around completely. They can be very stubborn. Fountains help a lot because in nature moving water is typically cleaner than standing water, so if your cat always refuses to drink, get a $10 cat fountain on Amazon, it works!

  • ✺roguetrick✺@lemmy.world
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    7 hours ago

    Airid environment animals that could subsist on metabolic water and blood to an extent. In inland arid environments most standing water never makes it to an ocean, which means it accumulates surface salts and is brackish.

      • wraith@lemmy.ca
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        6 hours ago

        I like cats, but this argument is dumb. The people I know who don’t like cats don’t like them precisely because cats don’t respect boundaries or consent the way dogs do.

        • IngeniousRocks (They/She) @lemmy.dbzer0.com
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          6 hours ago

          People I know who don’t like Cats don’t like them because they expect them to allow them to cross all their boundaries like dogs do. You can’t expect a basically wild predator to respect your boundaries, you can however respect its boundaries and that is where the folks I’ve met who dislike Cats fail. They try to hold it and get scratched because it didn’t like it. They overstimulate it and get scratched because the cat didn’t like it. I’ve seen SO many people who dislike Cats because they don’t understand how to approach an animal with caution and respect, and think that because the wild predator responded to discomfort the way a wild predator would do, that Cats are bad or evil.

          Edit, to clarify, my comment was about people who say Cats are evil, not about people who simply don’t like them.

          • wraith@lemmy.ca
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            6 hours ago

            Yes, you can’t expect an animal that basically tamed itself to respect your boundaries, and that’s why dog people don’t like them. They jump on the counter or try to break your coffee cup if it’s too close to the edge of the table.

            But overwhelmingly, in my experience as a cat shelter volunteer, people who have owned catsand do not like them feel that way, not because Mittens got overstimulated and scratched them once, but because they cannot cope with their boundaries being disrespected all the time. It isn’t the cats fault, true. It’s just an animal acting the way it evolved to act–but let’s try to be understanding about why many people struggle with them as pets.

            It really does take a certain personality to be okay with living with a cat.

    • fireweed@lemmy.world
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      5 hours ago

      Ah yes, because if there’s one thing evil creatures are famously resistant to, it’s salt.