With more and more designer or hybrid dogs making the headlines featuring the likes of Puggles, Golden Doodles, Cockerpoos, Pome-Pekes and other elaboratly titled canine crosses, it prompted us to wonder, exactly how did we arrive at Afghans, Airedales and Alaskan Malamutes when all we started with was the good, old fashioned Wolf? What precisely is a dog breed and how on earth does one go about creating one?