They don't see in black and white. That's a myth.
They see in a reduced spectrum of color--the way it looks to them is sort of like if you took almost all of the color contrast out of a photograph.
Dogs can tell the difference between red and blue because they're at almost opposite ends of the spectrum; they would have difficulty discerning blue from purple or red from orange.
They also can't tell the difference between two very dark or two very light colors.
2006-12-30 08:56:51
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answer #1
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answered by Iris 4
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It is not true that dogs are completely colourblind. While dogs do not have the same color vision as humans, they are able to tell yellow from blue. Like a human with red-green colourblindness, they are unable to tell the difference between red and green.
The reason for this limited range, in both the colourblind human and the dog, is that there are only two kinds of colour receptors in the retinas of their eyes. While most humans have three kinds of colour cells, with three different receptor molecules sensitive to blue, greenish-yellow, and red, dogs only have receptors for yellow and greenish-blue.
Canine eyes also lack another human trait: the fovea, an area especially dense with detail-sensing cells. As a result, their detail vision is not as good as ours. But they make up for this by having much better night vision and greater sensitivity to movement.
2006-12-30 16:52:43
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answer #2
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answered by jola2fine 2
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The dog's world consists of quite weird shades of grey, yellow and blue. Unlike humans they have only 2 types of eye cones (3 in human eye....blue, green, red). They can't see the difference between green and red. But can see in dark about 3x better than human and can recognise movement for up to 700m
2006-12-30 17:18:23
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answer #3
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answered by Anonymous
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Dogs can differentiate between red and blue. They are like colorblind humans who cannot tell between red and green. Colorblind humans still see colors but cannot differentiate these two colors. This is how dogs see. Thus, they can tell the difference between blue and red, just not red and green. This is due to fewer numbers of photoreceptor cells in the retina called "rod" cells, and more "cone" photoreceptor cells. This design of the dogs eye allows them to see more effectively under low light conditions at night.
2006-12-30 17:08:42
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answer #4
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answered by Jeffrey L 1
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Science : according to "Eye seeing Dogs" they can tell their ownners what is placed there by sense and sight yes color
very important sure Called GuideDogs for blind persons
see http://www.petsforblindpeople.com
2006-12-30 17:00:27
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answer #5
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answered by toddk57@sbcglobal.net 6
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dogs r colour blinde, miteb a bit difo between them like the blue mite b a darker shade to them not actually sure.
2006-12-30 17:44:10
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answer #6
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answered by Hayli P 2
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No they can't tell the difference between colors.
2006-12-30 16:52:03
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answer #7
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answered by Anonymous
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colors to a dog, show up in different shades of gray and black. so yes they can tell the difference, they just dont see them as colors. happy new years.
2006-12-30 16:52:28
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answer #8
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answered by chrystal 4
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No, I am not 100% sure, but I thought they can really only see black and white. They understand everything, just liek black and white tv it's just not HDTV man. They see some greens I think though. Red and Blue, they do not know.
2006-12-30 16:52:19
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answer #9
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answered by abrod262000 2
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Somepeople say No because they are color blind, but if they are not then, yeah they can tell the diference.
2006-12-30 16:52:36
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answer #10
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answered by Anonymous
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