White-tailed deer
Dichromatic vision in white-tailed deer (Odocoileus virginianus) allows them to distinguish someâbut not allâcolors.
Are deer colorblind?
Deer possess dichromatic visionâthey see short-wavelength colors, such as blue and violet, and middle-wavelength colors, such as green, but they cannot clearly distinguish long-wavelength colors or those near the red end of the visible spectrum. This is because dichromatic vision depends on two types of light-sensitive cone cells rather than the three types responsible for color vision in humans. Vision originates at the back of the eye, specifically in the retina. This thin layer of...