Queen Elizabeth II's Corgis

Queen Elizabeth II walks with her corgi on the beach in Norfolk in this undated photo. Roger Mugford, known as "the corgi whisperer," was first summoned to Windsor Castle 20 years ago to train the queen's nine corgis, who were fighting. "They're easily trained," Mugford told "Nightline." "They're very intelligent. Everybody that owns a corgi always says they are a big dog in a little frame." (Tim Graham/Getty Images)