Chihuahuas are described as charming, graceful, and sassy dogs who are categorized in the toy group of dog breeds. They come in a large variety of colors including black, chocolate, gold, fawn, and cream. Chihuahuas shed all year long, but you will mostly find them shed more in spring and fall, with the spring being the heaviest shedding season. They are considered a small dog breed with a height ranging from 5-8 inches and an average weight not exceeding 6 pounds for both genders. They have a life expectancy of 14-16 years.