Can fishes drown?

What if fishes just cannot breath on land because nobody has told them otherwise? What if I would fetch me a fish, put in a tank and slowly day by day remove more and more water leaving it with no option but to start breathing normal air? If this was doable then the fish should be grateful and perhaps I could put a small leach on it and take it out for walks in the park. BUT, what if I then took it to the see and it would fall in? Would it remember how to breath under water or would it drown? Well think about it. Most people just take so much for granted. Questioning everything is part of being a researcher (which I guess I am).
The story above is actually ”borrowed” from a Swedish children’s book but it got me thinking and I wanted to share it with you.

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