Rotifer facts: little known wheel animals | Animal Fact Files
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"Little Known Facts" is a musical number in the Broadway musical comedy, You're a Good Man, Charlie Brown. The music and lyrics were written by Clark Gesner in 1966. The song was in the original Off-Broadway production of the show in 1967 and was also in the revival production in 1999, where it was added an extra stanza by Andrew Lippa.