 Utilizing their saw as an extended sensing device, sawfish are able to "view" their entire surroundings by maintaining a position low to the sea floor.Sawfish uncover sand dwelling crustaceans and mollusks, two common prey types, by using their unique anatomical structure as a tool for digging and grubbing about in sand or mud.The sawfish churn up the sea bottom with their exaggerated rostrum to uncover these hidden food sources.