I don’t know if you have heard of the rumor that cute cats are actually color blind. In fact, this is basically correct. The world in the eyes of cats is different from the world in the eyes of humans.

Cats can't distinguish between colorful colors like us, so even if you stand in front of them all dressed up, they won't feel different from those glamorous bitches, just different degrees of black, white and gray.

For a while, people thought that cats were color blind and could only see black, gray and white. Different colors were seen as different shades of black, white and gray in cats' eyes.

However, current scientific research proves that this view cannot be established. Because experiments have proven that cats can distinguish colors after being trained to distinguish colors. Many scientists believe that cats don't care about colors, and although they can see colors, they don't assign any meaning to them. Binocular vision is very important for hunting animals like cats.

Because it must be able to accurately judge mileage in order to calculate the distance to the hunting target. When the fields of view of an animal's two eyes overlap, a stereoscopic visual effect can be produced. The larger the overlapping range, the stronger and more accurate the stereoscopic effect will be. Cats' ability to judge distance is not entirely as accurate as humans, but it is better than dogs. The overlapping range of the human eye's field of view is larger than that of a cat's eye, while that of a dog's eye is smaller than that of a cat's eye.

Cats don’t recognize many colors

Cats' color vision is often ignored by people, thinking that they live in a black and white world. It is true that cats cannot distinguish rich colors like humans - human retinas have three kinds of cone cells: red, green, and blue. It is these basic "three primary color visual cells" that give animals the ability to perceive the color world. However, cats' vision There are only two types of cones, green and blue. In this way, cats can only distinguish limited colors, such as gray and green, blue, and yellow. You know, most mammals only have two types of cone cells, and the world is basically black and white in their eyes.

Powerful night vision

Cats sacrifice their sense of color in exchange for their super powerful night vision capabilities. In the dark, the cone cells begin to work. At this time, the rod cells in the retina come into play. These cells cannot perceive color, so in the dark, everything we see is black and white. The ratio of rods:cones in cats is 25:1, while humans are only 4:1. Therefore, when it is dark, the cat becomes more sensitive than humans, and its pupils can expand to the surface of the eyeball in the dark. 90% of them, the weak light is enough for them to find prey. Come and go freely in dark environments.

Although cats have poor color discrimination, this does not affect their hunting and life. Their vision in dim light conditions is much more sensitive than humans. Cats only need one-sixth of the light received by human eyes to look like humansIt captures movement and appearance details equally accurately and can be well adapted to night hunting life.

Cats rarely need to use their ability to distinguish colors, so there is no need to worry about cats’ color blindness. This does not prevent them from living a pleasant life; their world is not monotonous, because you are still with them.