ChatterBank8 mins ago
Do fish sleep?
9 Answers
A guy at my work has asked me to post this.
Do fish actually sleep?
Do fish actually sleep?
Answers
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For more on marking an answer as the "Best Answer", please visit our FAQ.It will all depend on what species the fish is.
Fish do not have eyelids so they don't sleep like mammals do. However, some species do go into a semi trance. They need to remain semi awake to keep an eye out for predetors.
Some fish such as some shark species cannot stop swimming otherwise they cannot maintain enough water flow through their gills so therefore they don't sleep.
Some species of wrasse spin a ******* out of mucus and "sleep" in there whilst other fish bury themselves in the sand or lock themselves into caves and crevices.
HTH
Fish do not have eyelids so they don't sleep like mammals do. However, some species do go into a semi trance. They need to remain semi awake to keep an eye out for predetors.
Some fish such as some shark species cannot stop swimming otherwise they cannot maintain enough water flow through their gills so therefore they don't sleep.
Some species of wrasse spin a ******* out of mucus and "sleep" in there whilst other fish bury themselves in the sand or lock themselves into caves and crevices.
HTH