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en.wikipedia.org/wiki/Sleep_in_fish

Whether fish sleep is an intriguing question, to the point of having inspired the title of several popular science books. In birds and mammals, sleep is defined by eye closure and the presence of ... Divers can easily see fishes settling down for the night in typical shelters, such as holes and crevices, underneath ledges, amidst ...

wonderopolis.org/wonder/do-fish-sleep-with-their-eyes-open

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 ...

www.scienceabc.com/nature/animals/how-do-fish-sleep-without-even-closing-their-eyes.html

This has been quite a mystery to many. How in the name of God do fish sleep when they are surrounded by water all the time? Of course, they sleep like us, ...

www.quora.com/Why-cant-fish-close-their-eyes-do-they-sleep-keeping-their-eyes-open

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 eye lids (exc...

sleep.org/articles/do-fish-sleep

Find out the truth about whether or not fish sleep. ... sharks are the only fish that even have them and only close them to protect their eyes during encounters with  ...

www.quora.com/How-do-fish-swim-with-their-eyes-open

The same way we do, only they can still see clearly. The eyeball needs to be moist. Terrestrial ... How can some animals sleep with their eyes open (fish for example)? · Can fish in salt water swim backwards? Why do fish swim up and float and ...

www.yourpet.tv/your-pet-blog/do-fish-sleep-with-their-eyes-open.html

Fish are constantly swimming around, so much it can seem like they never stop. ... Fish do sleep with their eyes open, because they don't have eyelids (except ...

www.ask.com/youtube?q=Do+Fish+Sleep+with+There+Eyes+Open%3F&v=z6pQvWZemVc
Aug 3, 2009 ... Science...the final frontier. Scientific study to see if fish do actually sleep. Evidently they do. This video is in the name of science. Don't be a ...
www.ask.com/youtube?q=Do+Fish+Sleep+with+There+Eyes+Open%3F&v=XwpYFzBptHA
Nov 11, 2016 ... Do Fish Sleep with Their Eyes Open? https://www.ins.media/ https://www. facebook.com/insmedia/ https://twitter.com/ins_media.