Why can cats see at night?

Because there is a reflective layer behind the cat's eye called "choroidal carpet" (or bright carpet or photographic film).

The "choroidal carpet" acts as a mirror behind the retina, which can reflect light back to the cells of the retina. Cats can make full use of every light that enters their eyes and see things in dark streets or rooms.

The light absorbed by our human eyes is far less than that of cats. Cats can see moving objects (such as mice) clearly in the dark, while people can hardly see them clearly.

But what needs to be emphasized here is that if it is completely dark, cats can't see anything with dark eyes, and they mainly rely on sound, taste and beard to find their way.

Extended data

Living habits of cats

1. Cats that like to eat meat and are good at night activities belong to carnivores. They have very big canine teeth and sharp claws. They are good at catching small animals. Some cats foraging in the wild also catch frogs and often eat cooked food.

2. Cats sleep for 14 ~ 15 hours a day, and some cats sleep for more than 20 hours, so cats are called "lazy cats". However, if you carefully observe the way a cat sleeps, you will find that as long as there is a little noise, the cat's ears will move, and if someone comes near, it will suddenly get up.

Originally, cats were hunting animals. In order to be keenly aware of all the movements of the outside world, they don't sleep very dead, so they shouldn't be called "lazy" because cats only sleep for 4 to 5 hours.

Cats often clean their hair. Kittens love to lick their bodies and clean themselves in many cases. After dinner, the cat will wipe its beard with its front paws and lick its fur with its tongue after being hugged.

Cats wash their faces with their paws every day. And every time you urinate in a fixed place, you should cover the feces with your claws after defecation. The habit of cats loving cleanliness is an important reason why people are willing to keep cats.

Minnan language. Com- Why do cats' eyes glow at night? The Secret of Cat's Eye Glowing at Night

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