Kinda..Sorta...


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I have been spending a lot of time taking my dog to the vet recently because she has been having trouble with one of her eyes. Through this process of treatments and endless visits I wondered about whether she was actually colorblind or not? It's common saying that dogs are colorblind, but I came to find out that wasn't the case!

            It turns out that our furry friends can see a small spectrum of colors! On the website puppyflix.com they make a dog to human comparison of colors and how dogs see what we as humans see! Overall dogs see yellow, blue, gray, black, and brown! So yeah, it's limited but it's still color!

            They way this works is our eyes are made up of rods and cones. Rods help distinguish black and white and the cones enable us to see color. The more cones, the more color. You still with me?...So in short, dogs have less cones, which means less color!

Not that I recommend trying this on any dog, but apparently a test you can do is shine a flashlight towards the dog's eye and see what colors refract back!


So for all you dog lovers out there, I will leave you with this, my favorite pal:

IMG_2183.JPG


4 Comments

I personally do not have a dog but I was inclined to see if my cat have the same condition as your dog and it turns out to be true. In your blog post you mentioned the role of the cones and rods found in our eyes. The article I found confirmed that dogs and cats only have 2 cones which allows them to see green and blue pigments. I also learned that humans and monkey's have three cones distinguishing the different between the species.

http://www.ccmr.cornell.edu/education/ask/?quid=165

I've always wondered what colors dogs can see, but I've never taken the time to look it up. My brother and I use to joke around that our dog was colorblind and we thought she could only see black and white. Now I know she could see the blue jeans I was wearing that day, but she didn't know she had a red collar. I found a really great article that gives visuals of how dogs' color spectrum looks compared to humans'. The article also explains a test scientists did to distinguish what colors dogs could see based on colored paper and raw meet. It's interesting to think about how they really can't see red or orange, they just see yellow. That means when the leaves are changing in the fall, they only look yellow to dogs.

FIrst of all, thank you for directing me to that adorable website. I did some research on the rods and cones and found that, for humans, there are over 120 million rods in each eye. They are highly concentrated around the edge of the retina, which is why peripheral vision is less sharp and colorful than front-on vision. The rods are also responsible for adjusting your eyes when you enter a darkened room.

Concentrated in the center of the eye, there are a total of 6 million cones and three types of these cones. Each cone is responsible for either long, medium, or short wave lengths of light. There are more cones in the longer light wavelengths category, which is why humans can perceive more variations in warmer colors (bright yellow to light purple) than cool colors (light green to dark purple).

Anyways, I'm going back to that puppy website.

I forgot to post my source of that information.

Here it is: http://www.pantone.com/Pages/Pantone/Pantone.aspx?pg=19357&ca=29

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