DID YOU KNOW?
Posted On 01/14/2013 by Laura Benn
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A dog’s eyes are beautiful, but did you know that…
They have not one, not two but three eyelids! The third eyelid acts like a membrane and keeps the eye lubricated. The technical term for this piece of anatomy is the nictitating membrane and all animals, except humans and pigs, have it.




































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