How deep is the ocean Which fish can blow itself up like a balloon How do dolphins use sound to hunt Find out in this delightful little book. Simple text, fantastic photographs, appealing illustrations and exciting recommended websites introduce young readers to the wonders of the sea. All the websites are regularly reviewed and can be visited via links on the Usborne Quicklinks Nota: Contiene imágenes a color. Impreso en papel esmaltado.Find out in this delightful little book. Simple text, fantastic photographs, appealing illustrations and exciting recommended websites introduce young readers to the wonders of the sea. All the websites are regularly reviewed and can be visited via links on the Usborne Quicklinks Nota: Contiene imágenes a color. Impreso en papel esmaltado.Nota: Contiene imágenes a color. Impreso en papel esmaltado.