Do Dogs Actually Use Color Vision?

Fun article on colors that dogs actually see.  Published on July 22, 2013 by Stanley Coren, Ph.D., F.R.S.C. in Canine Corner

The belief that dogs are colorblind, in the sense that they see the world only in black and white and shades of gray, is a common misconception. In a series of painstaking and extended measurements Jay Neitz at the University of California, Santa Barbara, established that dogs do have color vision (see here). However the range of colors that dogs see is much more limited than the range of colors that we humans see. This is because human beings have three different types of color receptors (the cones in the retina) each of which is tuned to a different range of wavelengths, while dogs have only two types of color receptors (and many fewer of these proportionally). This means that dogs can still see colors, but their visual world is reduced to yellows, blues, and shades of gray. Furthermore the reduced number of cones in the canine retina may indicate that the colors that dogs see are not as intense. In the figure below you can compare what a human being might see to what a dog might see.  Read the complete article here.

dog canine color vision perception sensation eye

Comments are closed.