"The Sing-Song of Old Man Kangaroo" is a short story — one of the Just So stories by Rudyard Kipling. The story was first told aloud by the author to his daughter Josephine as part of their oral tradition. It involves a vain kangaroo who asks the Middle God Nquing to make him unlike other animals, and sought-after. The result is Yellow-Dog Dingo trying to catch Kangaroo all across Australia, explaining how kangaroos came to have strong legs.