We all know that everyone sees the same world in their eyes, with various colors. But on the other hand, we also know that there are some differences between the world that people with color blindness or some eye diseases see and ordinary people. So, do animals see the same world as we do? This time, the editor has compiled the differences between the world seen in the eyes of 6 animals and humans.

　1. Cat

Everyone knows that cats have very strong night vision. This is indeed true. This is mainly because cats have much more rod cells than humans, and rod cells are most sensitive to green and blue wavelengths. Affects night vision. In fact, cats have six to eight times more rods than humans. During the day, cats’ vision is far less than that of humans, and the colors they see are not rich. And scientists have doubts about what colors cats primarily see. Some think it's blue and gray, others think it's blue, yellow and green.

　2. Dog

Many people think that the world seen through the eyes of dogs is black and white, but this is a wrong view. We can explain it from a biological perspective: the cones in our eyes help us sense specific wavelengths of light, and each type of cone contains a pigment that is sensitive to specific wavelengths of light. The colors animals see depend on these pigments. Humans have three types of cones, while dogs only have two. This means that dogs do not see as many colors as humans. The world they see is often dominated by yellow and blue.

　3. Giant Clam

Not all animals have good eyesight, and some animals, such as giant clams, cannot even see clearly what is in front of them. These animals mainly live on rocks and corals. Although they have hundreds of small eyes on both sides of their bodies, these eyes can indeed distinguish colors, but they cannot see things clearly. In fact, the world they see may be very similar to the colorful abstract paintings created by human painters. They can only tell if things in front of them are moving through their vision.

　4. Gecko

Although cats’ night vision ability is enviable, the colors they see are not that colorful. However, gecko's night vision ability may be more enviable. This is because they not only have good night vision ability, but also can see very clearly, just like during the day. This is because geckos are 350 times more sensitive to color in the dark than humans. And geckos can see more colors than humans.

　5. Shark