The Biewer Terrier, also called Biewer Yorkie, is a rare breed of toy dog that has long hair hanging quite straight down the side of its body. The breed was developed in 1984 due to a so-called Piebald genetic recessive gene, originating from 2 Yorkshire Terriers. It is seldom found outside of Germany, its country of origin, where it was bred. The breed was first imported into the USA in 2003. The breed standard is that of a Yorkshire Terrier except for the coloring. The head must have three colors: black or blue, white, and gold in good symmetry. The belly, chest, legs, and the tip of the tail are white. The tail is full. The back is blue or black with white in it. The hair is silky, not curly. As a very new breed, there remains some controversy over whether the Biewer is a completely separate breed or is simply a color variation of the Yorkshire Terrier. However, true Biewer Terrier puppies and dogs can only be achieved via multi-generation crossing.