Why do cats have blue eyes – why are cats blue

       When the cat is a child, many eyes are light blue, not very bright ~ a little bigger is good!

       Cat’s eye color also has something to do with breed~

       Different breeds of cats have different eyes. In fact, the colors of cat eyes are not many. Generally, they are yellow, blue, amber, purple steel, green and light brown. There are some differences in color depth.

       The reason for the difference in the color of cat’s eyes is that different species of cats, or cats of different individuals in the same breed, have different ability to absorb and store pigment. Different pigments are deposited on the retina of all kinds of cats, which makes their retinas have different colors. The color of cat’s eye we see is actually to see the cat’s retina directly through the transparent cornea These colors on the. In cats of different breeds or individuals, the deposition of pigment in the retina is related to the deposition of pigment in the hair follicle. Therefore, there is a certain correlation between the color of cat’s eyes and the color of cat’s fur. For example, flower cats definitely don’t have blue eyes. Black cats have green eyes, while white cats with long hair have blue eyes, sometimes with different colors. We don’t know the actual effect of the color of cat’s eye on the cat itself. However, when people evaluate the color of cat’s eye, the clearer and more transparent the cat’s eye is, the purer the color is, the deeper the color is and the more precious stones are felt.

       In addition, the color of cat’s eyes is one of the important basis to identify purebred cats. Some purebred cats have fixed eye color. For example, pure Siamese and Himalayan cats must have blue eyes. If the appearance of the whole cat is the same as that of a purebred cat, but the color of its eyes does not match the eye color of the purebred cat, it means that the cat has mixed blood of other breeds.

       The reason why the cat’s eyes emit light is very simple: they are reflecting the light from external sources. The secret lies in the thin reflective layer composed of transparent cells. When the light passes through the cornea and lens and falls on the photoreceptor retina, it is completely absorbed, and part of the light can reach the internal vascular membrane. In animals with noctilucent eyes, this part of light is reflected back by transparent cells and penetrated through the retina to enhance the sensitivity of the eyes. Finally, a small beam of light is formed to emit outward. As a result, animals can see things clearly at night.

       Pupil changes in cats

       The slit in the pupil of a cat can protect the retina from strong light. Of course, it is meaningless to completely close the pupil, because closing the eyelid when necessary can also protect the retina. Therefore, when the pupil shrinks to the maximum, only the part between the pupils is completely closed, and there are still two pinprick sized holes at both ends

       The pupil of cat’s eyes changes with the periodic change of light intensity in a day and night. At noon in the day, the light is strong, and the pupil shrinks, showing a vertical line; at night, when the light is weak, the pupil is fully enlarged to be round, and other moments are oval in varying degrees.

       Why does the pupil of cat’s eyes change so significantly? Originally, the cat eye pupil is very big, is responsible for the pupil contraction muscle is very developed, the contraction is particularly strong. The cat’s function of changing three times a day is accomplished by the powerful dilation and contraction of the pupil. It can adjust the intensity of the light entering the eyes and keep it at a level sufficient to excite the nerves, so that the cat can clearly see all kinds of objects outside in the day and night, which is of great significance to the cat’s activities and foraging at night.

       As for the color of eyes, it is a matter of breed. Generally speaking, the color of two eyes of cats is different, but there are some special cases

       A cat’s eyes shine because it reflects light. The cat’s eyes have a special coating like a mirror that enables the cat to see clearly in the dark. The flash material can reflect light like a flashlight or a car headlight, thus making the cat’s eyes shine. The cat’s eye is like a camera with exquisite design. The pupil in front of the eye is equivalent to the diaphragm shutter of the camera, which can control the intensity of light entering the eye. At the back of the pupil is a double convex lens, which is equivalent to the convex lens in the camera lens, which can focus. At the bottom of the eye, there is a retina, which is equivalent to photographic film. The retina is connected to the optic nerve. When viewing objects, the light first enters the lens through the pupil. The radian of the convex surface of the lens can be adjusted so that the focus of the light falls on the retina. There are photoreceptor cells in the retina. The excitation impulse produced by the stimulation of light is transmitted to the brain through the optic nerve, thus producing vision. Cat’s vision is very sharp, in the light is very weak, even at night can distinguish objects, and cats also particularly like the dark environment. In the daytime, when the sun is strong, the cat’s pupil is almost completely closed. A thin line is used to reduce the light penetration. In the dark environment, the cat’s pupil is opened to increase the light transmission as much as possible. The width and narrowing of a cat’s pupil is as fast as adjusting the shutter of a camera, so as to ensure that the cat can quickly adjust its eyesight according to the intensity of the light and the distance of the object to be viewed, so as to make the focus and the object visible. However, the cat is color blind, in its eyes, the whole external world is a different shade of gray. Cat’s eyes shine in the dark, which has greatly damaged their own reputation. Black cats have been regarded as an ominous omen for centuries. Many people still believe that cat’s eyes will glow on their own. In fact, a very simple experiment can negate this statement. We can put a cat into a dark room without windows, and the cat’s eyes will no longer shine. The reason why cat’s eyes emit light is very simple: they are reflecting light from external sources. The secret lies in the thin reflective layer composed of transparent cells. When the light passes through the cornea and lens and falls on the photoreceptor retina, it is completely absorbed, and part of the light can reach the internal vascular membrane. In animals with noctilucent eyes, this part of light is reflected back by transparent cells and penetrated through the retina to enhance the sensitivity of the eyes. Finally, a small beam of light is formed to emit outward. As a result, animals can see things clearly at night. And, like cats and other nocturnal animals, any eye can shine. In fact, it is the same with people. As long as we use strong light to illuminate people’s eyes, this phenomenon will appear. When we use flash lights, we will see similar effects. This is why sometimes people’s eyes are dark red on color photos. The Hong Kong Wen Wei Po reported on October 12 that cats often purr in their throats when they are resting. Some people think it’s a cat snoring, but American scientists have found that it’s one of the ways cats treat themselves. Scientists point out that both domestic and wild cats purr after being injured. This kind of snoring from the throat hair helps them heal bone and organ injuries, and also makes them stronger. From human experiments, scientists have also found that exposing the human body to sound waves like the sound of a cat beating can help improve human bone mass. This finding supports the theory that human exposure to sound waves of 20 to 50 Hz can strengthen bone and promote bone growth. Markinsonal, director of the Institute of zoological communication in North Carolina, says cats can use their own sound waves to heal. Scientists point out that sound waves of a certain frequency can stimulate the course of treatment for bone injuries in cats. The effect of purring from the larynx of feline animals is just like that of human beings exposed to ultrasound. Generally speaking, it is also a means of self adjustment!

       Not all Persian cats have Mandarin Duck eyes. Most of the Persian cats with mandarin duck eyes are white fur. What’s more, most of all, mandarin duck eyed cats are mostly male! Because the probability of gene mutation is very small, it can be said that they are all homozygous, and not only Persian cats have Mandarin Duck eyes, but also other cats. The color of two eyes of purebred cats is the same, and Mandarin Duck eyes are generally considered to be caused by. Most of these cats (Linqing, China or Ankara, Turkey) are genetically deficient, with beautiful blue eyes and deaf ears. So people crossbreed yellow eyed white cats with this kind of cat to breed mandarin duck eyes, a yellow and a blue eyed white long haired cat, there is no defect of deafness. The eye color of Persian cat depends on the color of its fur. It is generally believed that the eye color of Persian cat includes blue, green, copper, gold, amber, strange color, and two eyes have different colors (namely mandarin duck eyes). The coat color of mandarin duck eyed Persian cat is usually white. A cat with green, amber and golden eyes, usually of the silvery gray coat. The purer and darker the color of all kinds of eyes is better, and the color uniformity of two eyes is better. The following information is from the Internet for reference only. The main body features of Persian cats are large and round head, wide face, a pair of round and small ears slightly forward, and a short and flat nose. The neck is short. The trunk is not long, but very wide, and is shaped from shoulder to hip. The tail and limbs are thick and short, and the claws are large, which makes them strong and strong, giving people a strong and solid feeling. A pair of round eyes, especially the “mandarin duck eyes” of the all white Persian cat are more distinctive: one is blue, the other is yellow, so it is often considered as a symbol of natural beauty. Persian cat is a typical long haired cat. It looks like a little lion. It has long mane hair on its neck and back. Its body hair is long and fluffy, soft and glossy. Its coat has many kinds of colors, among which the more primitive coat colors are white, blue and black. In recent years, there have been many kinds of fur colors, which can be roughly divided into five types: all color, gradient color, smoke color, stripes and multicolor. All one color Persian cats are white, black, blue red and cream. The Persian cat of gradual change color, have gray mouse color, gradual silver, shell carving color and so on. This type of cat’s hair tip is different from the color of its hair root: the gray mouse and silver cat have black hair tip and white hair root; the carved cat has red or cream hair tip on the white hair; the smoky Persian cat has white hair root and thick black, blue or red fur on the upper layer. When the cat is still, it looks monochromatic, but once the cat starts to move, the white in the lower layer is clearly visible. The Striped Persian cat has always been the most popular, with fur colors of silver, brown, red, cream, blue and shell carving. The polychromatic Persian cats include hawksbill cat, three spotted cat and blue cream cat. They are all female cats. In addition, there are also two kinds of flowers, some are black and white, some are blue and white, some are red and white, etc.

       Not surprisingly… Many native cats have blue eyes, and many white cats have Mandarin Duck eyes.. No wonder.. It’s really not surprising.. That’s normal… It’s not normal… Your cat father is so beautiful… It may be related to heredity. I have read about the color of cat’s eyes before, but I forget that there are other factors besides heredity… What pigment and so on, forget ~ ~ anyway, your family is normal

       Different breeds of cats have different eye colors, common yellow (from light yellow to dark yellow), blue, amber, copper, green, light brown and so on. This is mainly determined by the color of the retinal pigment layer.

       In fact, the color of the cat’s eyes we see is exactly the color of the retina of the cat’s fundus seen through the transparent cornea. There is a certain correlation between the deposition of pigment in the retina and the hair follicle. Therefore, there is a certain relationship between the color of cat’s eyes and the color of cat’s back hair. For example, flower cats never have blue eyes. Black cats have more green eyes, while long haired white cats have blue eyes.

       In addition, the eye color of the cat is one of the important basis for the identification of purebred cats. The eye color of some purebred cats is fixed. For example, the eyes of pure Siamese cat and pure Himalayan cat must be blue. If the overall appearance of a cat is the same as that of a purebred cat, but the eye color does not match the eye color of the purebred cat, it means that the cat is not purebred and has mixed the blood of other breeds.

       The color of cat’s eye is mainly related to the color of fur, followed by varieties.

       Blue eyed cats are mostly white. All white cats are not necessarily purebred. To be sure, purebred cats account for only a small proportion of domestic cats.

       In addition to all white cats, blue eyed purebred cats include: some white Persians, white Oriental short haired cats, white Oriental long haired cats, white and key color KONIS curly fur, Siamese cats of all colors, all snowshoe cats, partially white Turkish Angora cats, all Berman cats, all Bali cats, all Himalayan cats, all Muppets, and so on.

       

       What kind of cat do you want to see

       Persian cats have blue and green eyes

       The structure of the eyeball of cats and canines is special. When the light passes through the retina and reaches the iris at the back of the eye, it is reflected back to the retina for imaging. This is why dogs and cats can hunt at night with the help of low light. The light reflected from the iris still passes through the retina, which is why cat and dog eyes glow in low light. This is a common physiological phenomenon in wild cats. At the bottom of the eyes of many feline animals, there are many special lenses. These lenses have a strong ability of concentrating light, which can gather and reflect the weak scattered light around them. Animals with these glasses generally have a strong ability to move at night. They can distinguish objects with tiny light, and from the outside, it seems that they are them My eyes are shining. Most of them are nocturnal animals, including wolves, cats, tigers, leopards, owls and so on

CategoriesUncategorized