Purebred dog

This article does not have any sources. You can help Wikipedia by finding good sources, and adding them. (September 2009)

Purebred dogs are dogs whose ancestors are all the same breed.

A breed of dog is a particular subspecies that has been bred through time to exhibit certain characteristics, for example a bulldog is bred to be short and have a flat nose while a greyhound is bred to be light and run fast. Some dogs are bred to look special which is why poodles have fluffy hair.

This short article about biology can be made longer. You can help Wikipedia by adding to it.