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Fish have no eyelids to blink, their eyes are already moist, because they live in water. Since they have no eyelids, many people mistakenly think that fish do not sleep. Fish do sleep, they just stay very still in a quiet corner. Scientists...
http://wiki.answers.com/Q/Do_fish_sleep
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How do fish sleep? Talis Maisey Edwards from Carmarthenshire (Age 5-14) ... Answer:Yes fish sleep. But it’s not sleep as we know it. They don’t have eyelids to close, they sometimes do it during the day, they don’t show the characteristic brainwave patterns like REM sleep seen in humans, and some,
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bigquestion.wordpress.com/2008/03/04/how-do-fish-sleep/
bigquestion.wordpress.com/2008/03/04/how-do-fish-sleep/
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Everyone needs sleep. Every night average people perform a sleep ritual: We change into pajamas, crawl into our soft comfy beds, close our eyes and enter into a restful state. Our hearts slow down, we breathe slowly and regularly, Sleep me...
http://www.petplace.com/fish/do-fish-sleep/page1.aspx
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It all depends on what you mean by sleep. According to my dictionary, sleeping means closing your eyes and resting. The first thing we notice is that most fish don't have eyelids (except for sharks). Also, while some deep ocean fish never s...
http://www.infoplease.com/ipa/A0854907.html
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Re: Do fish sleep? Area: Zoology ; Posted By: Bruce Woodin, Staff Biology. Woods Hole; Date: Tue Apr 9 10:18:14 1996 ... Fish do have a quiescent period which can be called 'sleep'. Tropical freshwater fish in home aquaria can be observed resting immediately after turning the lights on in a room which has been darkened...
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www.madsci.org/posts/archives/may96/827165604.Zo.r.html
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Subject: Do beta fish sleep? ... I'm asking this question because I own a male beta fish, I know that they breathe from the surface of the water, but I was wondering if they "sleep" too. I am just wondering to make sure that he is not sick since when he appears to be "sleeping" he sort of tilts on his side and looks like he...
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www.madsci.org/posts/archives/sep2001/999867936.Gb.q.ht...
www.madsci.org/posts/archives/sep2001/999867936.Gb.q.html
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Do fish sleep? And if they do, how? Do they lay down? — Jessica of Wetumpka, AL ... Also, some freshwater fish (like catfish) swim up under a log or river bank for shelter during the day. By the way, fish can't close their eyes when they sleep; they don't have eyelids...
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www.discoverymagazine.com/digger/d92dd/d9208ddb.html
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Common aquarium pets, zebrafish have no eyelids and so scientists have wondered whether the fish get any sleep. The new research, detailed in the Oct. 16 issue of the journal PLoS Biology, suggests the fish do indeed take naps and can experience sleepless nights.
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www.livescience.com/mysteries/071016-llm-fish-sleep.htm...
www.livescience.com/mysteries/071016-llm-fish-sleep.html
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However fish do 'sleep' in their own way, having distinct periods of activity and inactivity. Minnows for example are very active in schools during the day, whereas at night they scatter and remain motionless in shallow water.
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www.theanswerbank.co.uk/Article1151.html
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