The Australian Cattle Dog has been of great benefit to the beef industry of Australia.  They became indispensable when populations spread to huge farmlands as they enabled farmers to maintain huge herds. 

The Anatolian Shepherd served as shepherds’ frontline defense from predators.  The dog breed is probably more than 6,000 years old. 

The American Staffordshire Terrier is an intelligent dog that make excellent guardians. 

The Affenpinscher is one of the most ancient of all toy dogs, and is believed to have been a major influence in the development of many of the smaller rough-coated breeds of Europe.