Can dogs distinguish colors?

In fact, dogs cannot distinguish colors. Dogs have very poor ability to distinguish colors. They are basically color blind and can only distinguish a very small amount of blue and purple. Therefore, the color of the toys that owners give to their dogs does not need to be so conspicuous. Blue and purple toys will be more effective.

Is the world of dogs in black and white?

Dogs have color vision, but it is different from humans. This is determined by the structure of dogs’ eyes. There are two types of cone cells in the dog's retina, which can recognize short wavelength and medium and long wavelength light waves, that is, they can feel blue light, red and yellow light. Due to the small number of cones, the color of the world in dogs' eyes is very monotonous. It is not as colorful as the world in human eyes, but it is by no means black and white.

The color of toys in the eyes of dogs

Most of the dog toys on the market today are red or bright orange. Of course, it looks very bright to humans, but in the eyes of dogs, it is boring dark gray or khaki. If you throw a red toy on the grass, it will look yellow to the dog, and it is likely that it will not be able to distinguish the toy from the background so clearly. So next time you throw a toy to your dog and it ignores you, remember to check whether the color of the toy you bought is wrong.

Dogs have inherently poor vision

Compared with humans, dogs have relatively poor vision, like myopia. What a person with normal vision can see 75 feet away, a dog cannot see or see clearly until 20 feet away, so the world in the dog's eyes may be blurry. However, dogs’ vision at night is much better than that of humans. This is because they have many more cones and rods that are sensitive to low light in their eyes than humans, so dogs can see some people in the dark. Things that cannot be seen.