Camels are unique animals whose organism is adapted to live in extreme conditions. Without liquid, they can live 10-14 days, and do not sweat, even with extreme heat.
But nevertheless, special attention should be paid to the eyes of camels, namely to their structural features. Their knowledge will help to get an answer to the important question - why doesn't flying sand interfere with the animals?
Features of the organs of vision of a camel
Not only the hump is an unusual quality of a camel, although this part of the body makes the animal unique and distinguishes it from other artiodactyl inhabitants. It is in him that the required elements are collected, which help him to exist for a long time without food and water.
But other parts of the body have no less interesting structure. The organs of vision of camels have unusual features, they are just like the eyes of a person capable of moving in different directions.
Nature envisioned everything so that animals could quietly dwell in desert areas where sandstorms are often observed. The special structure of the eyes helps them easily cope with dust, sand, as well as transfer bright sunlight.
Interesting fact: the eyebrows of the camels sharply come forward, and on the surface of the eyelids there are eyelashes with thick and long hairs, they are the ones that block the path of the particles and protect from the bright sun.
Third eyelid or blinking membrane
Camels have a special eye structure, which helps them to easily dwell in adverse conditions with constant dust and sand storms. If a person even with a small sand wind can immediately feel sharp pain and pain in his eyes, which in the end can threaten severe inflammation and conjunctivitis, then this phenomenon is not observed in camels.
An interesting feature of these animals is the fact that they are the owners of three organs of vision. Two of them have a similar structure with human eyes:
- able to move in different directions;
- can open and close;
- when blinking, the eyes are moisturized. This creates additional protection of the outer shell from dust, water, and the ingress of various particles, which can have a strong irritating effect.
Animals also have a third eye, which performs the main protection of the mucosa with strong sand and dust storms. It is a movable membrane, which has a different name - nictitating membrane. Outwardly, it looks like a film with a translucent structure.
A translucent film is hidden behind the outer eyelid. She is able to move only in the horizontal direction. During a period of strong storms with sand and dust, it is this eyelid that allows the camel to freely navigate in space and prevents any irritating particles from entering the eyes.
Another characteristic feature of the structure of the eyes is observed - the presence of double row eyelashes. Small hairs are able to partially protect the surface of the mucous membrane of the visual organs from the ingress of small particles of sand, dust. Camels can also completely cover the nostrils.
It is the presence of the third century or blinking membrane that allows them to easily endure adverse conditions. At the time of a strong storm with dust and sand, the film covers the surface of the eyes, and the animal calmly goes long distances under the sand flying towards it.