the.com/serrated
why your bread knife doesn't care that it's dull — the teeth do the work
saw logicTiny teeth concentrate force, sawing through what edges can't
shark mouthsMany sharks wield serrated teeth for tearing flesh
stays sharpRecessed edges resist dulling longer than straight blades
leaf edgesBotanists call jagged-margin leaves serrate
latin rootFrom serra, the Latin word for saw