Why don’t fish get thirsty?
In: Biology
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.
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