Ducky's siblings appear in The Land Before Time, The Land Before Time II: The Great Valley Adventure, The Land Before Time III: The Time of the Great Giving, The Land Before Time 4: Journey Through the Mists, The Land Before Time 5: The Mysterious Island, The Land Before Time 6: The Secret Of Saurus Rock, The Land Before Time 7: The Stone Of The Cold Fire, The Land Before Time 8: The Big Freeze, The Land Before Time 9: Journey To Big Water, The Land Before Time X: The Great Longneck Migration, The Land Before Time XI: Invasion of the Tinysauruses, The Land Before Time XII: The Great Day of the Flyers, The Land Before Time XIII: The Wisdom of Friends, The Land Before Time XIV: Journey of the Brave and ''The Land Before Time'' (TV series) they can swim with Ducky and Mama Swimmer.
