Do people see better than dogs?

They say we see people better than dogs. Is that true? How well do dogs see? Do they see colors?

Do people see better than dogs?

The sense of sight of our domestic dogs dates back to the time when they were still hunters and "wolves". In order to successfully prey, they had to look good in the twilight and quickly recognize movement.

How is the eye built? Be it a human or a dog, every eye has a retina. There are rods and plugs on the retina. These are important for color recognition and for sensitivity to light. While the rods on the retina are responsible for sensitivity to light, the plugs on the retina take care of color recognition.

Excellent motion detection Dogs are slightly short-sighted and have poor perception of objects that do not move. However, motion detection is much better than human, as a dog can detect a moving object at a distance of up to 900 meters. Perception of stationary objects is worse because he does not see them as sharply as a human. It can detect them at a distance of up to 500 meters.

Better vision at night. With the help of a layer called "tapetum lucidum", which reflects light and is located in the area of ​​the retina, dogs see clearer and better in the dark. Therefore, at night the dog's eyes "glow" in yellow or blue-green.

Great overview The field of view of a dog can cover up to 240 ° because the distance between the eyes in a dog is greater than in a human. This makes it easier for the dog to investigate large terrain for the presence of prey. However, spatial perception in dogs is not as good as in humans.

Do dogs see colors?

It was sometimes assumed that dogs could only see black and white. Today, we know that dogs can distinguish a color spectrum that is different from a human. The canine ancestor of the wolf needed good vision in the dark and excellent movement recognition to catch it. He has no advantage in distinguishing colors when hunting.

A less colorful world Dogs have only two different types of plugs (eye photoreceptors that sense colors). Their color spectrum includes only blue, purple and yellow. They see red as yellow, they don't see green at all, and purple is simply gray to them. That’s why they see the world far less “rainbow” than we humans.

We cannot claim that human vision is better than canine vision, as the latter is in some respects much better than human vision. The eyes are differently developed and serve different life needs, so a direct comparison is not possible.

Photos are taken from google.com.

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@Purebeauty