Why is rare a gray chihuahua and how many is in a world?

A gray Chihuahua is considered rare primarily due to the specific genetic traits required to produce that color variation, which is less common than other Chihuahua colors. While exact numbers are difficult to ascertain, it's estimated that they make up a small percentage of the overall Chihuahua population. Breeders may focus on more popular colors, leading to fewer gray Chihuahuas being born. Overall, their rarity contributes to their appeal among dog enthusiasts.