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An owl has three eyelids. Third closes diagonally - One liner Facts
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An owl has three eyelids.
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To protect their eyes, Owls are equipped with 3 eyelids. They have a normal upper and lower eyelid, the upper closing when the owl blinks, and the lower closing up when the Owl is asleep. The third eyelid is called a nictitating membrane, and is a thin layer of tissue that closes diagonally across the eye, from the inside to the outside. This cleans and protects the surface of the eye. |
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By rajesh, On - 2010-01-06 |
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