iAn adult great hammerhead has a nearly straight front edge to its head, with a shallow notch in the middle. Pores underneath sense weak electrical signals, helping the shark locate prey such as stingrays on or under the sand.
iiAn adult great hammerhead has a nearly straight front edge to its head, with a shallow notch in the middle. Pores underneath sense weak electrical signals, helping the shark locate prey such as stingrays on or under the sand.