what colour do dogs see in

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    Dogs CAN see in colour: Scientists dispel the myth that canines can only see in black and white.



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    Probably one of the most frequently asked questions about dog's vision is whether dogs see colors. The simple answer-namely that dogs are colorblind-has been misinterpreted by people as meaning that dogs see no color, but only shades of gray. This is wrong. Dogs do see colors, but the colors that they see are neither as rich nor as many as those seen by humans.



    The eyes of both people and dogs contain special light catching cells called cones that respond to color. Dogs have fewer cones than humans which suggests that their color vision won't be as rich or intense as ours. However, the trick to seeing color is not just having cones, but having several different types of cones, each tuned to different wavelengths of light. Human beings have three different kinds of cones and the combined activity of these gives humans their full range of color vision.

    The most common types of human colorblindness come about because the person is missing one of the three kinds of cones. With only two cones, the individual can still see colors, but many fewer than someone with normal color vision. This is the situation with dogs who also have only two kinds of cones.


    robert grist

    There are many problems associated with determination of color perception in dogs. They may see colors as stated, but I would have to study the testing method to be sure of the results. The double blind test was adopted in the US in the early 1950’s as a way to affirm the result of product testing and research where opinion, bias, beliefs or denials may influence the testing results otherwise.

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