The strip was based on a false premise. Dogs can distinguish shades of blue, yellow, and gray. They see red as a dark, brown or gray, and green as yellowish. So dogs can indeed discern differences in colors.
The strip was based on a false premise. Dogs can distinguish shades of blue, yellow, and gray. They see red as a dark, brown or gray, and green as yellowish. So dogs can indeed discern differences in colors.