Can dogs distinguish colors? In fact, dogs can’t distinguish colors. The dog’s ability to identify colors is very poor, basically color blind, can only distinguish a very small amount of blue and purple. So the owner to the dog’s toy color does not have to be so conspicuous, blue and purple toys will work better. The dog’s world is black and white? Dogs have color vision, just different from people, which is determined by the structure of the dog’s eyes. The dog’s retina has a total of two kinds of retinal cells, they can recognize short wavelengths and medium and long wavelengths of light waves, that is, can feel the blue and red and yellow light. Due to the reason that the visual cone cells are few, the world in the eyes of dogs is very monotonous colors, unlike the world of human eyes as colorful, but never black and white.
Dogs see the color of toys on the market now the vast majority of dog toys are red or bright orange. People will of course feel very bright, but in the eyes of the dog, is uninteresting dull gray or earthy yellow. If a red toy is thrown onto the grass, it is a yellow for the dog, and there is a good chance that he will not be able to distinguish the toy from the background so clearly. So the next time you throw a toy to your dog and it ignores you, remember to review the color of the toy you bought is wrong. Dogs are born with poor eyesight compared to humans, dogs have relatively poor eyesight, like a myopic. What a normal-sighted person can see 75 feet away, a dog has to go 20 feet to see or see clearly, so the world may be blurry in the dog’s eyes. But dogs see much better than people at night, this is because they have a lot more cone cells in their eyes and optic rod cells that are sensitive to low light than humans, so dogs can see things in the dark that people cannot see.
