is a Japanese novel by Tamio Kageyama. It won the Naoki Prize in 1988. It was adapted into an anime film named , released in 1993 by Toei Animation. The story revolves around a boy who finds a baby plesiosaur. Characters Yusuke is 12-year-old boy. Coo is a baby plesiosaur. Tetsuo Obata is a marine biologist Contseau is a dog. Catherine "Cathy" Ono is a Japanese-Canadian woman who works for the Coast Guard and "Green Earth". Col. Nolver is a celebrity among them. Dr. Davard Duvall is a marine biologist. Rooslean is a captain of the French navy. References External links 1988 Japanese novels 1993 anime films Drama anime and manga Films based on Japanese novels Japanese novels adapted into films Novels set in Oceania Plesiosaurs in fiction Japanese animated films Toei Animation films