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
Fault (dog) do with the individual dog's ability to work or suitability as a pet. Faults are formally defined in reference to the breed standard of the specific dog breed, and, due to the extreme variability of the dog ("Phenotypic variation among dog breeds, whether it be in size, shape, or behavior, is greater than for any other animal"), a single set of faults cannot be generically described for all dog breeds. Wikipedia articles for individual breeds should describe what are considered faults in that particular breed. "Faults" are evaluated as part of the judging process in conformation shows. As the purpose