For many years it was thought that dogs were completely color blind and could only see black and white. A few years ago, studies confirmed that dogs, are not able to see the full color spectrum as humans; but are able to see limited colors. Dogs have a red-green color deficiency known as Protanopia. With Protanopia, the eye lacks the long-wavelength sensitive retinal cones making it impossible to differentiate between the green-yellow-red section of the color spectrum.
For the protanope, the brightness of red, orange, and yellow is much reduced compared to normal. This dimming can be so pronounced that reds may be confused with black or dark gray, and red traffic lights may appear to be extinguished. They may learn to distinguish reds from yellows and from greens primarily on the basis of their apparent brightness or lightness, not on any perceptible hue difference. – from Wikipedia
For the protanope, the brightness of red, orange, and yellow is much reduced compared to normal. This dimming can be so pronounced that reds may be confused with black or dark gray, and red traffic lights may appear to be extinguished. They may learn to distinguish reds from yellows and from greens primarily on the basis of their apparent brightness or lightness, not on any perceptible hue difference. – from Wikipedia
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| How our dogs see the world |
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| How dogs and humans see colors |
I totally agree with you!
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