Sharks are one of the most feared carnivores in the sea. There are 365 species of sharks in the sea. All sharks are carnivores. A group of sharks and batoids eat almost anything, from fishes, crustaceans, mollusks, marine mammals, and others.
Many marine animals, from tiny clams to big fish, produce electric signals. Sharks and other ocean predators, including skates and rays, sense those electric fields. sharks (and other animals) have special organs called ampullae of Lorenzini that allow them to sense electric fields that other animals emit.
Sharks have an innate ability to detect electric fields, useful for sensing the bioelectric activity of their prey. Researchers discovered that strong electric fields could repel these predators, most likely by overwhelming their electricity sensors.