Coat
The Chihuahua coat comes in two varieties: The Smooth and Long coat. The Smooth coat has a glossy, soft, and close coat which is full textured over the entire body, but quite scanty on the head and ears. The Long coat has a soft, longer coat that can be slightly curly or flat. This variety does have an under-coat. Either coat type comes in a variety of colors such as fawn, brown, black, and white. The coat may be solid in color, marked with splashes of color, or tri-color. They are an average shedder.

Overview
The Chihuahua is the smallest of all breeds and has the distinction of being the oldest breed in America. They were named after the Chihuahua region in Mexico. It is believed that this breed descended from ancient breed that was larger in size and highly prized by Aztec royalty. The Chihuahua of today has a very fine bone structure, but are actually quite muscular.

Character
The Chihuahua is a very individualistic breed. They each have their own unique personality, so only a few generalizations can be made. They are commonly referred to as a “Chi”. They are energetic, graceful, and display a human-like expression. Their life span is the longest of any size dog.

Temperament
The Chihuahua is deeply devoted and fiercely loyal. They typically become extremely attached to one or two people. They are bold, fearless, and highly protective of their masters. They thrive on inordinate amounts of attention. The Chihuahua is by nature gentle, loving, and sweet-tempered. They are wary of strangers and make excellent watchdogs. This breed is not well suited for children or other pets. However, they are sociable with their own kind. Chihuahuas are excellent companions in the right circumstances.
Source: www.nextdaypets.com