Do fish sleep?
Fish Sleep Weird
Do fish sleep?
Picture the ocean at midnight. Every human on land is snoring into a pillow. But down here? The fish are still swimming, eyes wide open, not a pillow in sight. So do they ever actually sleep? The surprising answer is yes — they just do it in the weirdest ways imaginable.
First, let's clear up the obvious question. Fish don't have eyelids, so they can't close their eyes. That's why a "sleeping" fish looks exactly like an awake fish that forgot what it was doing. No blanket, no yawn, no cozy little bed. Sleep for a fish doesn't look like our sleep at all.
