Cats and dogs

From a physiology standpoint, the unique view comes down to types of light receptors in the eye itself. “Because dogs and cats are predators, they don’t have to be able to tell the difference between some similar shades,” Houpt explains. “As primates, we have to know whether that persimmon is ripe or not. We’re better at color discrimination in order to find the correct foods.” In other words, a grey rabbit is just as tasty as a brown one