Hairless cats are not really hairless, so people with cat hair allergy can't realize their desire to keep cats

Cats have always been human's good friends. Even if they don't do their jobs (don't catch mice), they will not reduce people's love for them. Recently, however, some people have done a lot to this kind of cute pets. In order to use them as hairless cats for high profits, some ruthless businessmen have shaved their whole bodies without even a beard. So, what's sacred about these hairless cats that have made ordinary cats miserable?

A hairless cat is a cat born without fur and its wrinkled skin makes it look more like a sanddog. The naked body is not only without aesthetic feeling, but also far away from our imaginary adoration. Although ugly, it's not easy for the cute cat to grow up like this, because hairless cats are genetically determined to be hairless.

Is a hairless cat really not hairy?

To produce a hairless cat, first of all, both parents must have hairless recessive genes in their bodies. Second, the gene mutates when it is passed on to offspring. Only when the above two points are met can hairless cats be born. Because of the harsh conditions, in nature, the number of hairless cats is far less than that of hairy cats. In addition, it is also found that there is no breeding between hairless cats. Only by crossing the hairless cats with the short hair cats can a few hairless cats be bred. Because the number of cats is small, the price of hairless cats is much higher than that of ordinary cats, which is the motive of swindlers to disguise ordinary cats as hairless cats.

Hairless cats have prominent eyes, thin cheeks and outstretched ears. It is not too much to call them "the ugliest cat in the world". However, their bald and ugly appearance has not affected their fame. In Britain, the price of hairless cats has reached thousands of pounds. Hairless cats are so popular, not only to satisfy people's curiosity, but also because cat hair allergy people want to experience the fun of keeping a cat by raising a hairless cat.

But in fact, hairless cats can't be pets for people with cat hair allergies. On the one hand, hairless cats are not really hairless, and their ears, mouth, nose, tail and other parts have soft fetal hair [Note 2]; on the other hand, people who are allergic to cat hair are not allergic to the hair itself, but a protein called "FEL D1" is secreted by the sebaceous glands of cats, and the skin of hairless cats also secretes this protein. So, hairless cats can't help people with cat hair allergy realize their desire to have a cat.

Therefore, we should regard the hairless cat as a kind of ordinary cat, do not have too strong desire for it, so that more ordinary cats can be far away from the danger of being scratched, and will not be pit by cheaters.

Hairless cats often lick their bodies, clean themselves and often clean their fur. After dinner, it will wipe his beard with his front paws, lick his anus with his tongue after urination, and lick his hair with his tongue after being held by others. This is a little hairless cat removing odor and dirt. Hairless cats have many rough little protuberances on their tongue, which are tools to remove dirt. Hairless cats lick their fur with their tongue in order to stimulate the secretion of sebaceous glands, make the hair bright and smooth, not easy to be wet by water, and can lick a small amount of vitamin D, promote the normal development of bones, but also make the fur fluffy and promote the function of heat dissipation. Hairless cats usually begin to groom and groom their fur after eating and playing, or after chasing prey, exercising violently and waking up in the sun. In the hot season or after strenuous exercise, the body produces a lot of heat. In order to keep the body temperature constant, the excess heat energy must be discharged from the body. Therefore, the hairless cat will use its tongue to smear saliva on the fur. The evaporation of water in saliva can take away the heat and play a role in cooling and relieving summer heat. Regular carding during depilation can promote the growth of new hair. In addition, by grasping and biting, the hair can be prevented from being infected with parasitic diseases, such as fleas and hair lice, so as to keep healthy.

The behavior of hairless cats to cover up their faeces is entirely instinctive and inherited from their ancestors. The wild hairless cat, the ancestor of the hairless cat, covered up its feces in order to prevent natural enemies from finding it and tracking it from the smell of its feces. The behavior of modern hairless cats has no significance in this respect, but it has won the reputation of being hygienic.

All cats have excellent day and night vision, so Canadian hairless cats are no exception. Hairless cats still keep the habit of ambushing in the daytime and coming out at night. Many activities (such as rat hunting and mating) are often carried out at night. The hairless cat's most active time of the day is at dawn or evening, and most of the day is spent languidly resting or sleeping. In bright places, hairless cats shrink their pupils as narrow as lines to reduce damage to the retina, but limit the breadth of vision. There is a blue-green fluorescent film (called tapetum lucidum) on the back of the omentum of the hairless cat, which can increase vision in the dark. In the flash, the cat's eyes can present various colors. Like most carnivores, their eyes face straight ahead, giving them a wide field of vision. Hairless cats have poor discrimination of primary colors. If Canadian hairless cats have only weak light here, they will use their whiskers to improve their mobility and perception. The beard can feel very weak wind to identify where the obstruction is when it is not visible. A hairless cat has three eyelids. When the eyelids of a hairless cat are opened, the eye piercing eyelids will cover the eyes slightly from the side. If the hairless cat is sick, or sleeping or laughing, the eyelids will retract in part. If a hairless cat has a third eyelid for a long time, it is a sign of illness.

Almost all hairless cats usually have their ears up. Unlike dogs, hairless cats with broken ears are very rare. Scotch hairless cats with folded ears are an example of gene mutation. When angry or frightened, the hairless cat's ears drop and growl. When listening, the hairless cat will turn its ears so that it can hear sounds from many sources.

Compared with other cats, it is sweaty and its body temperature is 4 ℃ higher than that of other cats. Therefore, it is necessary to eat continuously to maintain its metabolism. This is a cat that is very sensitive to sunlight. Because hairless, poor ability to adjust the outside temperature, both afraid of cold, and afraid of heat, because the white part is easy to tan. When the room temperature is kept between 25 and 30 degrees, the cat will feel very comfortable. If the temperature is lower than 20 degrees, it will feel cold. If the indoor temperature is lower than 10 degrees, the hairless cat will be frozen to death. This cat is suitable for apartment keeping. In summer, they need sunscreen to protect them from sunburn; in winter, they need to add clothing to keep them warm.

In addition, the Sphinx cats are honest, tolerant, and in some ways more like dogs, more intimate and loyal to their owners.