Are the Border Collie and the Smooth Collie both breeds of dog?
Border Collie The Border Collie is a working and herding dog breed developed in the Anglo-Scottish border region for herding livestock, especially sheep. It was specifically bred for intelligence and obedience.
Borzoi The Borzoi ( , literally "fast"), also called the Russian wolfhound (Russian: Ру́сская псовая борзая ), is a breed of domestic dog ("Canis lupus familiaris"). Descended from dogs brought to Russia from central Asian countries, it is similar in shape to a greyhound, and is also a member of the sighthound family.