There are two types of Chihuahuas: long coat and smooth coat. While some people think the only difference between the two types is their coat, others believe that long-coated Chihuahuas are a bit more reserved than smooth coats. Because neither type has too much hair, Chihuahuas are very sensitive to cold temperatures, so be careful to keep them warm in cold weather.
Chihuahuas will happily elect themselves house dictator if not trained early, so start training sessions as soon as possible. They are clever dogs that can be trained quite easily, but their training needs to be both gentle and firm. The Chihuahua breed has one of the longest life spans, so a well-trained Chihuahua can be a beloved member of the household for many years.
Chihuahuas are the smallest dogs in the world, but they seem to be completely unaware of their tiny stature. They will quickly come to the rescue of their home or owner if a situation arises. Although their yapping and growling might not make much of a difference, their loyalty is touching nonetheless.
Chihuahuas tend to develop deep attachments to those they love and enjoy spending lots of time with them. They do not do well when left alone for long periods of time and may develop problem behaviors. If you can offer your dog lots of love, attention, and care, the tiny-bodied, big-hearted Chihuahua might be the right breed for you.
Additional Information on this Topic: The Chihuahua