Why don’t fish get thirsty?
In: Biology
Fish actually need to work to keep water OUT rather than in. We’re the opposite which is why we have a thirst reflex and organs such as kidneys.
Life began in the ocean, so the only way creatures can live on land (in dry air) is due to adaptations like the aforementioned allowing us to store and preserve water well enough to stay “wet.”
TL-DR: land animals are weird, not fish.
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TL;DR : because their mom taught them to.
Thirst is the feeling you get when you have less amount of water then the best. If you don’t drink water even after feeling thirsty you’ll become dehydrated. Fresh water fish can get dehydrated if concentration in water goes higher [if fish go into saltier water]. When they go dehydrated they have to go into freshwater immediately. From ages of experience fish do pass these information to new offsprings. So fish never gets thirsty because they know how to not.
My only guess would be because they’re already surrounded in water, as humans we don’t feel the need to breathe air as its just a natural substance around us
Actually because of osmosis fish in the ocean needs to drink water while fish in lakes need to pee out the excess water they get in from the osmosis. So some fishes need to drink.
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