How Bad Is.Dog Colorblindness?

How Bad Is.Dog Colorblindness? Red-green colorblindness is called deuteranopia. In humans of Northern European ancestry, it shows up in about 8 percent of men and . 5 percent of women. But researchers in Italy found it shows up in probably 100 percent of dogs. What does a colorblind dog see? A dog’s two color-detecting cones