A long love story of black swan黑天鹅的爱情故事

Dean

Whatever floats her boat: Petra has a new swan-shaped friend. (By Frank Augstein -- Associated Press)

A long love story is over at a zoo in Germany. Petra the black swan and her swan-shaped paddleboat are parting company after nearly two years. Petra had refused to leave the boat's side -- until she met a live swan this winter. They are now building a nest together.