Swan swan-shaped boat to part ways | 3/19/2008 1:03:00 AM AP - A long love story is over at a German zoo: Petra the swan and her swan-shaped paddleboat are parting ways. Petra, a black swan, became a minor celebrity in 2006 when she became so attached to the boat ? which is shaped like an oversized white swan ? that she refused to leave its side. Source: Yahoo! Permanent link to Swan swan-shaped boat to part ways