Question:

Do fishes close their eyes when they sleep ?

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Do fishes close their eyes when they sleep ?

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  1. All fish, like all snakes, have NO eyelids.  Therefore they cannot close their eyes.  Their brains just "turn off" while they sleep.  You can wave your hand in front of a sleeping snake and it just won't move, because it is mentally shut down.


  2. Fishes do not have eyelids and can't close their eyes. They do however have protective mucos covering them. But the answer is no.

  3. No they have no eyelids

  4. they dont have eyelids so they cant close their eyes, they just lightly lose consciousness that way if they are in danger they can quickly escape

  5. they do not have eyelids

  6. of course not
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