hammerhead, hammerhead shark
['starfish, sea star', 'sloth bear, Melursus ursinus, Ursus ursinus', 'Komodo dragon, Komodo lizard, dragon lizard, giant lizard, Varanus komodoensis', 'whiptail, whiptail lizard', 'goldfish, Carassius auratus', 'hammer', 'sea slug, nudibranch']