Why do fish never sleep??
Answers
Answer:
Fish do sleep with their eyes open, because they don't have eyelids (except for some sharks) to close! Most fish need to keep moving even when they're sleeping, so that they keep a constant flow of water moving past their gills to maintain a proper oxygen level in their bodies.
Explanation:
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Answer:
As a matter of fact, they do! If you watch fish long enough, you'll notice that they do take breaks. There are definite periods of time when they seem to hover in place, almost like they're in a trance. But their eyes are open. Are they sleeping?
The simple answer is yes! They are sleeping, and they can sleep at any time during the day or night. Fish do sleep with their eyes open, because they don't have eyelids (except for some sharks) to close!
Fish sleep is not exactly like human sleep, though. For starters, they don't use pillows. They also don't have beds with sheets and blankets! For fish, sleep is more like a resting period similar to a daydream that humans might experience.