The color of a dog's coat, or hair cover, also ranges widely, even within a breed. Some dogs are all black. Others are all white. Some have light markings on portions of their bodies and darker coloration elsewhere. Or, they may have a solid color other than black.
All dogs have some hair cover, even the so-called hairless ones.
The size and form of these structures vary greatly as do, for example, coloration and hair characteristics. Long-faced dogs, such as the German shepherd and the cocker spaniel, may have jaws eight inches long. By contrast, the nose of small-faced dogs, such as the Pekingese and the pug, may be less than an inch from the eyes. Dogs have 42 teeth. The other teeth are premolars and molars.