The nictitating membrane is sometimes called the 3rd eyelid. It moves horizontally, across the eye, which helps keep their eyes moist and clean. The birds are able to retain their visibility because they are able to see through it. | The Avian Reconditioning Center for Birds of Prey
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Did you catch the third eyelid? 👀 The nictitating membrane is a transparent third eyelid that can be drawn across the eye to protect and moisten while maintaining visibility. Fun fact, nictitating membranes are found in fish, amphibians, reptiles, birds, and mammals but typically not primates. See this for yourself at our Center! We have tickets left to both of our flight demos on Friday, November 25, the day after Thanksgiving. Bring the whole family! https://fareharbor.com/embeds/book/thecent
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Some shark species possess an eye protection mechanism called the nictitating membrane! This inner eyelid covers the eye during feeding or in situations where the eye may become vulnerable to damage, like coming into close contact with my camera here. Not all sharks have this feature. For instance, great white sharks roll their eyes back during predation to protect them! Kaimana Ocean Safari 🦈#savesharks #oceanicwhitetip #sharkdiving #sharkdiver #ocean #hawaii | Kayleigh Nicole Grant
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