How many coat colors does a bicolor dog or cat have?

A bicolor dog or cat is characterized by having two distinct coat colors. This typically means that one color is dominant, while the second color is used to create a pattern, such as spots, patches, or other markings that contrast with the primary color. This definition is rooted in the genetics of animal coat color and patterning, distinguishing bicolored animals from those with solid or more complex coat colors that would involve three or more colors.

The essence of being bicolor lies in its simplicity; just two colors come together to create the animal's coat, making them visually striking. Having one color would result in a solid-colored animal, while three or four would indicate a different form of coloration altogether, such as tricolor patterns or more complicated mixes seen in various breeds. Thus, the answer of two is definitive in identifying a bicolor pet.