Britain's Princess Elizabeth, later Queen Elizabeth II, and her companion Shaun Plunket, take the penguins for a walk at London Zoo, June 30, 1938. (AP Photo/Stf)
Britain's Princess Elizabeth, later Queen Elizabeth II, and her companion Shaun Plunket, take the penguins for a walk at London Zoo, June 30, 1938. (AP Photo/Stf)