I once spent three full minutes searching for a bullfrog so unexpectedly large that I couldn't see it even as a dozen enthusiastic campers shouted directions. I finally asked, “What color am I looking for?” and one guy said, “Green.” When I finally spotted the frog, I saw what painters face: the thing wasn't green at all, but the color of wet walnut bark” (p. 695). This example illustrates how we can perceive colors differently from each other. Annie had visualized her idea of ​​what the green bullfrog should look like, perhaps from an image she had seen in the past. The person who told her the frog was green might have meant it was olive green. For example, what some might call burgundy, others would call dark red or even crimson. Furthermore, color blind people have completely different color perception; depending on the degree of color blindness, they may not be able to recognize the colors red, green or