[ID: a digital drawing of a hammerhead shark swimming up and to the left on a blue ocean background. End.]

Hammerhead shark! Distinctive for its weird-ass head, referred to as a cephalofoil - a wide flattened bow-shaped plane that makes the shark more hydrodynamic, and able to move quickly. Like other sharks they utilize electrosensory pores called ampullae of Lorenzini - the wide head gives them a wider range for sensing prey.