Cocker Spaniel
... that the two modern breeds of Cocker Spaniel, American and English, are thought to have been descended from only two dogs?
... that the two modern breeds of <b id="mwGDA"><a href="./Cocker_Spaniel" id="mwGDE" rel="mw:WikiLink" title="Cocker Spaniel">Cocker Spaniel</a></b>, <a href="./American_Cocker_Spaniel" id="mwGDI" rel="mw:WikiLink" title="American Cocker Spaniel">American</a> <i id="mwGDM">(pictured)</i> and <a href="./English_Cocker_Spaniel" id="mwGDQ" rel="mw:WikiLink" title="English Cocker Spaniel">English</a>, are thought to have been descended from only two dogs?