Underneath (right), the creature had a snaillike foot for locomotion and a mouth whose rasplike radula was covered with at least 125 rows of tiny teeth. (sciencemag.org)
Their appearance notwithstanding, cone snails are fearsome predators that immobilize their prey with a poison - tipped radula, a tooth - like ribbon made out of hard chitin that can be launched with the force of a spear. (discovermagazine.com)
They charted the efficiency and flexibility with which giant Pacific octopuses switch strategies to open different shellfish — smashing thin mussels, prying open clams, drilling tougher - shelled clams with their rasplike radulae. (discovermagazine.com)