hammerhead, hammerhead shark
['sloth bear, Melursus ursinus, Ursus ursinus', 'tiger, Panthera tigris', 'shovel', 'chambered nautilus, pearly nautilus, nautilus', 'promontory, headland, head, foreland', 'frilled lizard, Chlamydosaurus kingi', 'whiptail, whiptail lizard']