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Vision in fishes

en.wikipedia.org/wiki/Vision_in_fishes

Vision is an important sensory system for most species of fish. Fish eyes are similar to terrestrial ..... Sharks have eyelids, but they do not blink because the surrounding water cleans their eyes....

Do fish blink? | Reference.com

www.reference.com/pets-animals/fish-blink-e95cc7ab988cdfbf

Fish don't blink or close their eyes at all, even when they sleep, because they don 't have eyelids. The only exception is the shark which has a nictitating ...

www.ask.com/youtube?q=Do Fish Blink&v=hd5i90Q9pp0
May 12, 2013 ... Sharks are the only fish that have eye lids. Therefore they are the only fish that blink. There eye lids protect their eyes when they attack their ...
www.ask.com/youtube?q=Do Fish Blink&v=rD8IUCSAnds
Dec 6, 2011 ... Periohtalums argentilineatus .Close up movie. トントンミーのまばたき。まばたきを する魚。

Apologetics Press - Why don't fish blink, and if they do, how do they?

www.apologeticspress.org/aparticle.aspx?cid=4177

Feb 1, 2012 ... If you watch them for long, you will notice that most of the fish in a fish tank do not blink their eyes. The reason for this is quite simple—they don't ...

Do fish blink? - Tropical Fish Forums at the Age of Aquariums

www.aquahobby.com/board/viewtopic.php?t=58273

Posted: 2010.10.31(Sun)6:29 Post subject: Do fish blink? Reply with quote. My cousin asked me if fish blink or if there any kind of fish that blink...I think sharks ...

Do Any Fish Blink Their Eyes? - Blurtit

pets-animals.blurtit.com/1250216/do-any-fish-blink-their-eyes

Answer (1 of 6): Fish do not have eyelids and are not capable of blinking. However, sharks are the only fish that are able to blink with both eyes. Sharks possess ...

why can't fish blink? – Infectious Diseases Zone

diseasej14.imascientist.org.uk/2014/06/20/why-cant-fish-blink/

Jun 20, 2014 ... There are actually some fish that do have eyelids, some deep sea fish ... over the eyes but they cant blink with it, we actually think it somehow ...

Do Fish Sleep with Their Eyes Open? | Wonderopolis

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

Apr 23, 2014 ... Do fish sleep? And assuming they do, HOW do fish sleep? If you've ever watched fish for any length of time, you know they get plenty of ...

Do Betta Fish Have Eyelids? | Betta Fish Care

bettafishcare.com/betta-fish-info/biology/do-betta-fish-have-eyelids/

Betta fish owners often notice that their fish never seem to close their eyelids, blink or fall asleep: they just constantly keep their eyes open! This leads us to ...

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Do fish blink or sleep? - Quora

www.quora.com

Fishes don't have eyelids like reptiles, Birds or mammals do. So naturally, they don't (can't) blink. But, they can sleep. They reduce the amount they move about ...

What fish can blink its eyes? - FunTrivia.com

www.funtrivia.com

May 31, 2000 ... Answer has 5 votes. Vote for this answer. Not all sharks can "blink." Fish in general, do not have any kind of an eyelid, or nictitating membrane.

Why do fish not have eyelids? - The Naked Scientists

www.thenakedscientists.com

Apr 19, 2009 ... Answer to the science question: Why don't fish have eyelids? ... Humans have eyelids to prevent the cornea drying out, we blink to moisten ...