Yorkshire terriers are smaller dogs originally from Scotland and England. The American Kennel association classifies them in the toy breed, meaning that they some of the smallest dogs around. Yorkshire terriers typically make great companion dogs, and will live somewhere between twelve and sixteen years and weigh under seven pounds full grown. If you think you might be interested in getting a Yorkshire terrier you should keep in mind that while small, this particular breed of dog needs a lot of attention, and a lot of activity. Yorkshire terriers have long hair that sheds so you will need to be committed to daily grooming, or a house full of dog hair. Yorkshires tend to pick fights with other dogs, and occasionally small children, so its good for them to live with older kids in a single dog environment. If you have other pets they need to be socialized early in life to get comfortable with the other dog in the house.