Scientists have performed colour vision tests on dogs. Jay Neitz, for example, tested the color vision of dogs. Dogs were shown three light panels in a row: Two of the panels were the same color,...
Yes. Research has found that dogs have colour-sensitive cones in their eyes, but not as many as a human's. Studies have shown that dogs cannot differentiate between green, yellow, orange or red....
Dogs' visual acuity is lower so they cannot focus as well. An object a human can see clearly may appear to be blurred to a dog looking at it from the same distance. A rough estimate is that dogs have...