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Do fish sleep?


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Fish breath by taking in water threw thier mouths and out thier gills. So if fish stop moving do the stop breathing. Or do they sleep in a current. And if fish did sleep in a current wouldn't that current push them along, canselling out thier movment. Or do they just not sleep?

Edited by Anura
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That brings up a second question. How is it they dont suffocate? Do they keep moving while asleep?

 

Do you suffocate when you sleep? Fish continue to breath just like we do when they sleep. Most fish can and do pump water through their gills even when swimming.

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