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Blinking spreads tears over the eye's surface, keeping it hydrated. A dry eye becomes cloudy, making it hard to see; it is also itchy.

http://en.wikipedia.org/wiki/Blink

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17y ago

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Why cats does not blink as often as humans?

Unlike humans, cats have more effecient tear glands and ducts. Also, they need to see much more when they're hunting, and so they don't blink. They blink about every five minutes.


do humans blink a lot.?

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Do perch blink?

No, perch do not blink, humans have to blink to give mosture (a little bit of water) to thier eyes, but perch practicly live in mosture, so therefore they do not need to blink so they dont, that is the same with all fish.


Why do humans blink their eyes?

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Do all animals blink?

No, not all animals blink. Blinking is a reflex that helps protect the eyes by keeping them moist and free from debris. While most mammals, including humans, blink regularly, some animals like fish and snakes do not have eyelids and therefore do not blink.


How do fish not blink?

they just don't. its like asking why don't humans have webbed ears, or can fly?


How do fish blink their eyes?

Fish do not have eyelids like humans do, so they cannot blink in the same way. However, some fish have a nictitating membrane that can cover their eyes for protection. This membrane acts like a thin, transparent eyelid and helps keep the eye moist.


Humans blink their eyes to keep them moisturized and remove foreign substances This is an example of what type of behavior?

subconscious


Do guinnea pigs ever blink?

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Do squirrels blink?

R u seriously asking this???


When was Blink Blink created?

Blink Blink was created in 2001.


Do bees blink?

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