How Dogs See Things
Studies reveal dogs can see colors, how dogs see differently than human and how they differentiate between colors. Watch our featured video: How dogs see the world plus get great deals on eye health products for seeing dogs and blind dogs.
What Your Dog Sees
Many people think dogs only see in black and white, this is not true. Dogs can see color although they see it differently than humans do.Dogs eyes are 5 times more sensitive to light than human eyes. Humans can see over 1 million colors while dogs can only see in shades of blue and yellow which means they can only see approx. 10 thousand colors. Dog shows commonly use blue and yellow colors because they know dogs can see these colors. Interestingly, dogs cannot see the color red. Dogs have a wider field of vision, better night vision, and better motion detection than humans. However, humans can see much farther than dogs (Think fact,1).
Featured Video: How Dogs See the World
See more on how dogs differentiate between colors below.
How Dogs Differentiate Color
"Restrictions in color vision are probably of limited consequence in dogs, as it is likely that dogs react only to colors of biological importance to them.64 Problems may arise, however, when people attempt to teach hunting and working dogs to distinguish among red, orange, yellow, and green objects solely on the basis of color. Additionally, a guide dog would be unable to differentiate among the signals at a stop light on the basis of color alone. In these cases, dogs must use clues other than color, such as smell, taste, texture, or other visual clues such as relative brightness and position, to differentiate between these similarly colored objects. On the other hand, Orbeli reported in 1909 that dogs are able to differentiate perfectly among closely related shades of gray that are indistinguishable to the human eye.1 This ability would be a greater aid in increasing visual discrimination among animals adapted to function in low light levels than would enhanced color vision, because in low light conditions, there may be insufficient light to stimulate the cones. Summary Compared with the visual system in human beings, the canine visual system could be considered inferior in such aspects as degree of binocular overlap, color perception, accommodative range, and visual acuity. However, in other aspects of vision, such as ability to function in dim light, rapidity with which the retina can respond to another image (flicker fusion), field of view, ability to differentiate shades of gray, and, perhaps, ability to detect motion, the canine visual system probably surpasses the human visual system. This has made the dog a more efficient predator in certain environmental situations and permits it to exploit an ecological niche inaccessible to humans"(Miller, Murphy, 2).
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References:
1. How do dogs see the world. Think fact. https://www.youtube.com/watch?v=9lF7F9XYCRE
2.Miller, E. Paul DVM, Murphy J. Christopher DVM, PhD. Vision in dogs. Retrieved Oct. 19, 2016 from Leaning edge of medicine-a review.http://redwood.berkeley.edu/bruno/animal-eyes/dog-vision-miller-murphy.pdf
1. How do dogs see the world. Think fact. https://www.youtube.com/watch?v=9lF7F9XYCRE
2.Miller, E. Paul DVM, Murphy J. Christopher DVM, PhD. Vision in dogs. Retrieved Oct. 19, 2016 from Leaning edge of medicine-a review.http://redwood.berkeley.edu/bruno/animal-eyes/dog-vision-miller-murphy.pdf