… In sandstorms, camels often close their third eyelid and keep walking. Normally, a third eyelid is large enough to cover all the eyeball, which has the function of moistening and protecting animals’ eyes from dirt and injuries. The camels' gait and widened feet help them move without sinking into the sand. The third one is a thin membrane that they can see through in a sandstorm. As desert dwellers, camels need their third eyelid to keep out the sand and dust as they walk through sandstorms. If sand gets lodged in their eyes, they can dislodge it using their transparent third eyelid. A rabbit has a third eyelid called Nictitating membrane (just like sharks). Posted by silver at 8:09 AM. It’s quite thin and has the color of white or light pink. January 28, 2014 by KIDS DISCOVER. When it comes to third eyelid, camels are the one animal that is very well-known for this unique feature. Called a nictitating membrane, the transparent lid helps keep out sand and dust; it can even improve vision, like a contact lens. Share. Camels have not one, not two, but three eyelids. You might say that a camel can find its way through a sandstorm with its eyes closed.

Two of the eyelids (the upper and lower eyelids) have eyelashes. Camels have three eyelids to protect their eyes from blowing sand. Camels' kidneys have a 1:4 cortex to medulla ratio.

The eyelid is very thin, so a camel can see through it. Actually, cats and dogs also have three eyelids. It is there to protect the eye and probably lubricate it. The third eyelid (also called nictitating membrane, plica semilunaris or palpebra tertia) works as an extra protective layer of the eyes. The Camel’s Third Eyelid.

Source: Care2. On top of that, their nictitating membrane can … The kidneys and intestines of a camel are very efficient at reabsorbing water.