Most Chihuahuas have an apple-shaped head. This head shape is standard. However, the deer-headed Chihuahua also exists. They have slightly longer heads and no slope in their nose. Furthermore ...

The Chihuahua, one of the smallest dog breeds ... There are two main types of Chihuahuas based on head shape: the "apple head," with a round skull and short muzzle, and the "deer head," with ...