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Do fish blink?
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Caton
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Joined: 28 Jul 2009
Location: Washington State, USA

PostPosted: 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 (e.g. great whites) blink
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UncleWillie
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Joined: 26 Nov 2007
Location: Georgia, USA

PostPosted: 2010.10.31(Sun)10:04    Post subject: Reply with quote

Sharks are the exception. Nearly all fish cannot/do not "blink" because they do not possess eyelids (there is no need to hydrate eyes Smile ). Most sharks can cover the eye with an upper and lower membrane that mostly acts as a protective layer while catching/fighting prey. I think a few sharks lack this membrane though.

Other fish (mudskippers come to mind) already have a protective membrane covering the eye at all times to keep their eyes moist while out of water. They can roll their eyes around in sockets, but never "blink". Hope this helps.
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Caton
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Joined: 28 Jul 2009
Location: Washington State, USA

PostPosted: 2010.10.31(Sun)11:57    Post subject: Reply with quote

Thanks a lot Uncle Willie! My eight year old cousin thanks you. Smile
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Fern
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Joined: 26 May 2009
Location: SW Florida

PostPosted: 2010.11.02(Tue)11:25    Post subject: Reply with quote

Corys can look like they blink, I believe they do it when they swallow or something...... Been quite some time since I looked it up Laughing
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keithkyli
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Joined: 27 Apr 2010

PostPosted: 2010.11.09(Tue)8:52    Post subject: Reply with quote

Fern wrote:
Corys can look like they blink, I believe they do it when they swallow or something...... Been quite some time since I looked it up Laughing

Their "blink" is actually looking down onto the substrate. It's really cute and comedic.
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mohammad.j.ideis
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Joined: 25 Nov 2010
Location: chicago

PostPosted: 2010.11.25(Thu)23:17    Post subject: Reply with quote

actually bottom feeders roll their eyes down but the ydont blink u heve 2 stare at their eyes 4 1-2 min aprox Very Happy
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katienaha
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Joined: 18 Dec 2009
Location: British Columbia, Canada

PostPosted: 2010.11.26(Fri)0:34    Post subject: Reply with quote

mohammad.j.ideis wrote:
actually bottom feeders roll their eyes down but the ydont blink u heve 2 stare at their eyes 4 1-2 min aprox Very Happy


For the non-native-english speakers out there, he said "you have to stare at their eyes for 1-2 minutes approximately".

Please do try to type better, it is actually a forum guideline. If you read first, you would have seen it.
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