The claim that a chimpanzee eye can see up to 10 million different colors is not accurate and lacks scientific evidence. The human eye is capable of perceiving a wide range of colors, but it is difficult to quantify the exact number of colors that can be seen. The human eye has three types of color receptors called cones, which allow us to see a broad spectrum of colors. These cones are sensitive to different wavelengths of light, primarily in the red, green, and blue portions of the electromagnetic spectrum. This combination of three types of cones enables the human eye to see a broad range of colors and color variations. However, it is subjective to assign a specific number to the range of colors that can be perceived due to various factors such as lighting conditions, individual variations in perception, and perception interpretation.
