The Swiss Family Robinson: Flone of the Mysterious Island (家族ロビンソン漂流記 ふしぎな島のフローネ Kazoku Robinson Hyōryūki Fushigi na Shima no Furōne?) is an anime series produced by Nippon Animation. The story is loosely based on the novel Swiss Family Robinson by Swiss author Johann David Wyss. As such it exhibits the same geographically impossible array flora and fauna. The character of Flone is not present in the original novel, in which the Robinson family consists of only a father, a mother, and four sons (no daughters). It is likely that Flone was introduced by Nippon Animation as a new character for the anime version in order to attract more girls as viewers. Also in the anime version, the oldest of the Robinson children, Fritz, is named "Franz" (though his name is changed back to Fritz in the English dub), and the character of Jack is a three-year-old rather than a ten-year-old. Very popular in Europe, this anime is one of the few World Masterpiece Theater series to have been dubbed into the English language for the American market. An English dub by PMT, Ltd, titled simply Swiss Family Robinson, aired on The Family Channel cable network in the U.S. in 1989. This dub renames Flone "Becca" as well as her older brother Franz "Fritz". It can currently be seen on the Smile of a Child network and Amazon Prime video.