The Yorkshire Terrier, also known as the Yorkie, is classified as a toy breed. The American Kennel Club (AKC) standard for this long haired dog is a weight of between four (1.8 kilograms) to seven pounds (3.2 kilograms). Their tails, which should be held aloft, are docked at a length which allows for a slight rise above their rump.
Although it has been classified as a toy breed, the Yorkshire Terrier still has many qualities of the true terrier. The body is well-proportioned and body compact and boxy. It is tenacious when it goes after something, as a true terrier will.
The Yorkie has a silky blue or silver and tan coat. A show dog will have a long and flowing coat, which takes quite a bit of work to maintain. A house pet will often have the "puppy cut" which is a more closely cropped cut, styled so that the hair frames the Yorkshire Terrier's face. This breed of dog has hair as opposed to fur and so does not readily shed, as a dog with fur typically would. This type of hair does require constant maintenance as it will need to be brushed and trimmed at regular intervals to help facilitate its luster.
Named after York, England where they originated, this small sized dog was first used to catch rats in the mills and weaving centers of England. These dogs, while diminutive in size, have a certain tenacity. They are not aware of their small stature and will engage with dogs twice their size, without fear or timidity.
Though small in size this toy breed requires exercise on a consistent basis. Though they can easily adapt to apartment life, the Yorkie needs daily walks to keep it not only healthy but in good temperament, as well.
The AKC reports that the Yorkie is the most popular breed of dog. No longer considered a working dog, it is now a popular choice as a companion dog.