The Yorkshire Terrier (often shortened as Yorkie) is one of the smallest dog breeds of the terrier type and indeed of any dog breed. The breed developed during the 19th century in Yorkshire, England. Ideally, its maximum size is 7 pounds (3.2 kg). A popular companion dog, the Yorkshire Terrier has also been part of the development of other breeds, such as the Silky Terrier. Most have black and tan coats, but they are also known to have silver-grey or blonde coats.
Yorkshire terriers are playful and energetic dogs. They often exhibit separation anxiety when left alone, which is a reason that some owners keep two dogs.