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[-] general_kitten@sopuli.xyz 1 points 1 month 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.

[-] stupidcasey@lemmy.world 0 points 1 month ago

IDK man, whales can live over 200 years.

[-] general_kitten@sopuli.xyz 1 points 1 month ago

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

[-] stupidcasey@lemmy.world 0 points 1 month ago

Ok, so here's an Idea, have more salt in our fluids.

[-] Welt@lazysoci.al 1 points 1 month ago

Great idea except we'd need another million years of evolution or more

[-] jumping_redditor@sh.itjust.works 0 points 1 month ago

irradiated reproductive cells go brrr

[-] stupidcasey@lemmy.world -1 points 1 month ago

No, you're missing the point again, when fish first went land diving they drank salt water because of that there body would have already had more salt and so would there kidneys, we evolved the ability to drink fresh water, that is what took a million years.

[-] Welt@lazysoci.al 1 points 1 month ago

I didn't comment elsewhere but from this incoherent comment it's clear you don't have the first clue what you're on about, or why I said a million years (evolving a major change like sea to land takes hundreds of millions or billions of years).

Ideas are good, but people contributing ideas that show they don't know anything at all about the topic, while insisting they're right, gets tiresome.

[-] stupidcasey@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

Or maybe you're still missing the point...

this post was submitted on 21 Jun 2025
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