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Shark-0-Matic Have a shark you can't identify? Step your way through the Shark-O-Matic to figure out to which order your shark belongs. Does your shark have an anal fin (a small fin that juts from the midline of the belly just back of the vent)? Yes, my shark has an anal fin. Cocos Island | Sharkmasters | World of Sharks | Dispatches E-mail | Resources | Site Map | Sharks Home Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule | About NOVA Watch NOVAs online | Teachers | Site Map | Shop | Search | To Print PBS Online | NOVA Online | WGBH © | Updated June 2002 |