Goofy performing another song and dance show. Mickey and his gang's animated shorts by this point routinely featured song and dance numbers. It begins as a typical Mickey cartoon of the time, but what would set this short apart from all that had come before was the appearance of a new character, whose behavior served as a running gag. Dippy Dawg, as he was named by Disney artists (Frank Webb), was a member of the audience. He constantly irritated his fellow spectators by noisily crunching peanuts and laughing loudly, till two of those fellow spectators knocked him out with their mallets
Dippy (London) to be replaced by the long skeleton of a young blue whale, dubbed "Hope". The whale had been stranded on sandbanks at the mouth of Wexford Harbour, Ireland in March 1891. Its skeleton was acquired by the museum and had been displayed in the Large Mammals Hall (originally the New Whale Hall) since 1934. The work involved in removing Dippy and replacing it with the whale skeleton was documented in a BBC Television special, "Horizon: Dippy and the Whale", narrated by David Attenborough, which was first broadcast on BBC Two on 13 July 2017, the day before the whale skeleton