Here's what the world looks like to your pup, by StanleyCoren
Many people believe that dogs are colorblind, however data shows that they are able to see a range of colors.
The particular form of color blindness which dogs have does make it difficult for canines to perform certain tasks.If you ask the average person whether or not a dog sees colors they are apt to give you the stock answer that dogs are colorblind. That is true; however, people misinterpret that particular fact as meaning that dogs see no colors and that for canines the world appears to be much like a black-and-white photograph.
After analyzing canine responses to thousands of color presentations, Neitz was able to conclusively show that dogs do see colors, but many fewer than normal human beings. The dogs act as if they are missing the cone which normally responds to longer wavelengths of light which we see as red. This means that dogs see the colors of the world as basically yellow blue and gray. They see the colors green, yellow, and orange as yellowish, and violet and blue as blue, while blue-green is seen as gray.
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