Whiteshark4©ByronDilkesSaveOurSeasFoundationCopyright (IMAGE) Save Our Seas Foundation Caption Sharks have special pores in their skin, known as the Ampullae of Lorenzini - that allows them to detect electrical signals. Each pore is filled with a highly conductive gel, which carries weak electrical signals from the surrounding seawater to a receptor cell. Credit Photo © Byron Dilkes Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.