We perceive the world in different ways
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Human vision is difficult to call perfect in terms of acuity, visible color spectrum or viewing angle, but people see well against the background of most animals. “Around the World” “looked” at the same image through the eyes of a man, a dog, a fish, a turtle, a fly, a mouse and a parrot.
Dog
He has vision that is insensitive to red and orange colors, but he distinguishes shades of gray much better than a person. He sees well at night. It has weak farsightedness (up to + 0.5 diopters), perfectly recognizes moving objects from a distance of 700-900 meters. But it does not distinguish well anything closer than 35-50 centimeters.
Parrot
It is capable of perceiving the entire color spectrum and ultraviolet visible to humans. Tetrachromatic: the main colors are red, green, blue, ultraviolet, and the last one is the most important of them. Visual acuity is several times higher than that of a human. Clearly sees over long distances, has the ability to adjust vision depending on the distance to objects.