ANSWERS: 27
  • Response to Erin Albrecht: Thanks for the information, though it is completely irrelevant to this answer, as your comment pertains to something unrelated to the question. Don't give answers negative ratings when you are referring to an irrelevant subject. ----------- That's a theory that most scientists and experts go by. I however, don't beleive it. While many theorize that dogs can only see in black in white, there is no real way to actually prove it, other than the fact that their eyes have a very different distribution of cones and rods, which in the human eye determine whether or not we can interpret colors. Given that evidence, it is widely beleived that dogs can only see in black and white. The reason that I don't beleive it is that many dogs seem to have excellent vision, in both light and darkness. While color isn't necessarily a determining factor in such good vision, dogs seem to be able to discern features that, if they were colorless, would be nearly impossible to figure out. Its all speculation...so until dogs learn how to talk we can only go off the scientific evidence that dogs lack a certain amount of structures in the eye that, in humans, allow us to see color. Maybe they really do see in Black and White, or at least multiple shades of black and white (its impossible to see in just black and just white). Although I don't beleive it to be true, I'm no scientist and couldn't give a completely factual answer, but if yo were to go by scientific evidence, then yes, I suppose that dogs only see in shades of white and black, but there are many, such as myself, who don't necessarily beleive that.
  • According to http://www.sciencenet.org.uk , dogs do not see in black and white, they have colour vision similar to red/green colour blind people. They only possess two of the three types of core (colour sensing cells in the retina). There are three types of cone: blue, green and yellow (often called red). Dogs only have blue and yellow and the yellow core detects yellow and red. When the yellow gets stimulated it signals either yellow or red, the yellow when mixed with signals from the blue receptors will detect green. Therefore dogs can not detect the difference between red and green. I couldn't find any scientific proof or background for this though.
  • Dogs can see in color, but its a very very muted color. It's due the the amount/arrangement of rods nd cones in the eye. While this can never be truely proven because dogs can't talk , the theory is accurate in humans.
  • No, this is not true. Sciene keeps finding out more and more about how dogs can see colors and now it is assumed that they can see things like purple, blue, and green, but reds, oranges, and browns looks like a light yellowish/brownish color. It seems that different breeds of dogs may see different amounts of colors, too. At first the answer would've been, "Yes," and a few years ago it would've been, "dogs can see black, white, and blue." It will most likely keep changing.
  • Dogs can see in color like any normal person but their eyes work best in dim light where as humans eyes have adapted to see in bright light. I cannot prove this is true but my dog does prefer dim light and through a lot of research this is what my thoughts are on this topic, but who knows maybe someones dog will start talking tonight and we can ask them.
  • The retina is the rear internal surface of the eyeball and it is the part of the eyeball onto which rays of light are focussed for onward transmission to the brain. There are two types of receptor on the retina, rods and cones and it is these things that convert light rays into nerve impulses. Rods are very sensitive and are important in the ability to be able to see in low light conditions, while the cones are responsible for detailed vision and the ability to distinguish between colours. The human retina has a much higher proportion of cones than the canine retina so, conversely, the canine retina has a much higher proportion of rods. This leads to dogs being able to see more than humans in low light situations, particularly movement. It also mean that dogs can distinguish fewer colours than humans, but they see more colours than black and white. Source Black's Veterinary Dictionary
  • It seems most of us are in agreement that dogs can see some colors, although perhaps muted as suggested. There have been research studies done; I remember reading one article from Purdue University that was well documented and well written, but I can't find it right now. (Purdue has also been doing studies regarding HOT SPOTS on cats and has thus far learned that ORANGE CATS typically have problems with this MORE THAN any other color of cat!) A short simple answer (not unlike others here) http://en.allexperts.com/q/Zoology-1354/eyesight-dog.htm A more detailed answer...well written, understandable! http://www.cvm.uiuc.edu/petcolumns/showarticle.cfm?id=116 And one for the road...I like that he mentions blind dogs who assuredly CAN live happy lives sightless. http://www.doctordog.com/Drdognewsletter/dogeyes.html
  • yes they can
  • Let me ask......"Come here, Fido. Do you want to eat the red dog biscuit or the black and white cookie?"
  • I don't know if that is really true or not, cause my dog can distinguish between the powder blue slippers and my grey slippers, and he thinks all the yellow fire hydrants are evil, but doesn't growl or bark at the red ones....
  • No not at all. They see colour differently and see in general differently than us but they do seem to see colour. Of course we can't go into their heads and "see" the way they do but the evidence is pretty overwhelming.
  • No. Dogs can only see red and green, they cannot see the other primary colour - blue.
  • 1) No, but if you see a black Scottish Terrier and a white West Highland White Terrier, it could be whisky: http://en.wikipedia.org/wiki/Black_%26_White_%28whisky%29 2) "Like most mammals, dogs are dichromats and have color vision equivalent to red-green color blindness in humans." Source and further information: http://en.wikipedia.org/wiki/Dog#Sight 3) Further information: http://en.wikipedia.org/wiki/Dichromat Here you can see how it looks like: http://www.iamcal.com/toys/colors/index.php
  • No! But their colour vision is limited.
  • As far as I know, no one knows. Has anyone ever been a dog? Nope. So how would anyone know?
  • No, they are dichromats, which means that they can only perceive two of three colors. (only to see black and white would be monochromatism) 1) "Like most mammals, dogs are dichromats and have color vision equivalent to red-green color blindness in humans." Source and further information: http://en.wikipedia.org/wiki/Dog#Sight 2) "Dichromacy in humans is a moderately severe color vision defect in which one of the three basic color mechanisms is absent or not functioning. It is hereditary and sex-linked, predominantly affecting males. Dichromacy occurs when one of the cone pigments is missing and color is reduced to two dimensions. Organisms with dichromacy are called dichromats. Dichromats can match any color they see with a mixture of no more than two pure spectral lights. By comparison, a trichromat requires three pure spectral lights to match all colors in their visual spectrum." "It is currently believed that most mammals are dichromats. The straightforward exceptions are primates closely related to humans, which are usually trichromats, and sea mammals (both pinnipeds and cetaceans) which are monochromats. Night monkeys are a partial exception: in most species, males are dichromats, and about 60% of females are trichromats, but the owl monkeys are monochromats, and both sexes of howler monkeys are trichromats. Recent research (e.g. Arrese et al, 2005) suggests that trichromacy may be widespread among marsupials." Source and further information: http://en.wikipedia.org/wiki/Dichromat 3) "Although it has previously been thought that dogs are ‘colour blind’, recent studies have shown that under bright light dogs are capable of detecting wavelengths within the blue and yellow portion of the light spectrum and are therefore dichromatic. However, they are incapable of distinguishing reds and oranges as they have only a few of the cones sensitive to the red/orange wavelengths (Neitz et al., 1989). The visual colour spectrum of dogs can be seen in two forms: violet and blue violet, which is seen as blue and greenish yellow; and yellow or red, which is seen as yellow. Therefore, dogs are red-green colour blind and are also better at differentiating between shades of gray than humans (Miller & Murphy, 1995)." Source and further information: http://animalbehaviour.net/JudithKBlackshaw/JKBlackshawCh7b.pdf
  • yes it is becouse of whats called canine vision. canine vision helps dogs seein the dark better but makes them see in black and white
  • Studies say that they do. Some dogs have better sight and see in shades and smears of colors, such as seeing black and white, but also shades of green, yellow and blue.
  • No it used to be believed. (I always doubted it watching my dogs but science has to catch up with those who interact daily with other species)They see certain colors just as we humans do.
  • Not true, They See some colors just not as definitively as humans do
  • They see in black and white so that they can distinguish movement for over a mile.
  • Yes. I vaguely recall an experiment using European PAL color TVs and American NTSC sets. They use different numbers of lines. Unfortunately I forget the details but I know the experiment showed dogs see in black and white. This might explain why their sense of smell is so good?
  • Please see this link it maybe helpful!! http://www.vetinfo.com/dogsee.html
  • yes, i think they do!
  • yes, they do not see in color
  • no they see color blind
  • http://www.veterinaryvision.com/See.htm Although it is commonly believed that dogs and cats see only in black and white, recent evidence suggests that animals may have some degree of useful color vision. The perception of color is determined by the presence of cone photoreceptors within the retina. These cone cells function in bright light conditions and comprise approximately 20% of the photoreceptors in the central retina of the dog. In humans, the central retina (macula) is 100% cones. Behavioral tests in dogs suggest that they can distinguish red and blue colors but often confuse green and red.

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