A virtual fish network known as Daliworld aims to re-create the world’s oceans on thousands of interconnected PCs. Using a file-sharing technology similar to Napster, DALiWorld, lets you spawn digital fish that swim around your computer screen. And when they’ve had enough, the little devils swim right off your PC and onto the screen of another Daliworld user, who may be in Japan, Zaire, Argentina or any of the 47 other countries represented by the more than 30,000 people DALi says have downloaded the software.