If you’re a kangaroo through and through, just do what Kangaroos do. Young Sue really doesn’t like being a kangaroo, so she goes off to find something better. First she tries climbing the trees like a koala, but that doesn't work. Then she wades into the esa like a platypus, but that’s no good either. Finally, Sue joins up with some bouncy, jouncy wallabies...and discovers that being a kangaroo...and discovers that being a kangaroo isn’t so bad, after all.
Marsupial Sue by John Lithgow