Dog crossbreed status symbol?" "Designer dog" puppies sometimes bring higher prices than the purebreds from which they are bred. The fanciers of designer dogs respond that all modern dog breeds were created from earlier breeds and types of dogs through the same kind of selective breeding that is used to create designer dogs. The Toy Poodle was bred down in size from larger poodles, most likely by crossing with various very small Bichon types, such as the Maltese and Havanese. Most of the modern breeds have ancestries that include various older dog types and breeds; see individual breed articles for details of
Dog breed the other European dogs despite reports of direct Scandinavian origins dating back 5,000 years. The dog which accompanied the ancestors of Native Americans from Siberia is extinct. The spread of modern dog breeds has been difficult to resolve because many are the products of the controlled breeding practices of the Victorian era (1830–1900). In 2010, a study looked at 48,000 Single nucleotide polymorphisms that gave a genome-wide coverage of 912 dogs representing 85 breeds. The study found distinct genetic clusters within modern dogs that largely corresponded to phenotype or function. These included spitz-breeds, toy dogs, spaniels, Mastiff-like breeds, small terriers,