How do sharks detect their prey?

Sharks have several specialized senses that help them detect prey, including an acute sense of smell, enhanced hearing, and the ability to sense electrical fields. Sharks have nostrils that allow them to detect minute concentrations of blood in the water from miles away. They also have specialized organs called ampullae of Lorenzini, which can detect the electrical fields produced by the muscles and heartbeat of prey. This combination of senses allows sharks to locate food even in low visibility environments, such as deep water or during nighttime hunting.