2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21
As you know, in nature, especially wild, white color in animals is extremely rare. The only exception is the inhabitants of the polar latitudes, where the color is developed by natural selection over many generations. But cats originated from Africa, and originally they were brown. Their brownish coat served as protection from the scorching sun, as well as camouflage in order to sneak up on prey unnoticed and hide from larger predators. How did the white cat survive?
Sometimes even among black rooks absolutely white chicks are born. And even among people (including the Negroid race) there are individuals with very white skin, snow-white, as if gray hair and reddish eyes. This phenomenon is called albinism. In fact, the albino does not have a white suit, but the absencesuch. The skin, hair and iris of highly organized creatures contain melanin - a substance that protects the body from solar radiation and stains it black. Representatives of the Negroid race have more of this enzyme, the European northern race has less, and albinos do not have it at all. The latter includes the white cat.
But if in the wild such individuals most often die early, without giving offspring, then domestic animals are lucky in this sense. Unusual color was valued in the days of Ancient Egypt, where it was considered a symbol of purity and purity. People diligently cultivated the already dominant albinism gene. Now the white cat is very much appreciated, and standards have been developed that cut off the participation in competitions of light beige, silver and pale fawn cats. Only a rich, even snow-white color is allowed without any shades, as well as multi-colored spots. The only exception is kittens, which may have small spots on their heads - they should disappear with age.
Animals with copper or orange eyes (Copper Eyed White), despite the snow color, are less prone to deafness, but a white cat with different eyes (Odd Eyed White, strange eyes) is likely to have minor problems with hearing. She can only be deaf
in one ear, or be hard of hearing. In any case, neither the color of milk, nor blue eyes are yet the final indicator that the animal ismuffled. But if it gets scared when you come up from behind and touch it, then there is cause for concern. Among these cute pets, a special place is occupied by a white cat with blue eyes (Blue Eyed White). She is not a complete albino: a small amount of melanin is present in her body, which colors the lower layers of the iris black, and the absence of this substance in the upper layers creates a blue effect. The most valued animals are those with very rich, blue eyes. Unfortunately, about 20% of the Blue Eyed White breed is born deaf. The epistatic and dominant gene W is responsible for this, which goes hand in hand with sky color.
White cat needs special care, even if her hearing is fine. Firstly, this coat is very easily soiled. Secondly, on a white background, dirty ears and sour eyes are especially visible. Thirdly, the albinism gene makes these animals extremely vulnerable to solar radiation. Melanin does not protect the skin and the cat can get sunburned, and if this happens often, then get skin cancer.
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