hammerhead, hammerhead shark
['stinkhorn, carrion fungus', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'borzoi, Russian wolfhound', 'otter', 'diamondback, diamondback rattlesnake, Crotalus adamanteus', 'crayfish, crawfish, crawdad, crawdaddy', 'swab, swob, mop']