Final answer:
Sharks have a keen sense of smell, electroreceptors, and a sensory organ called the lateral line to help them find hidden prey.
Step-by-step explanation:
Sharks have several special features that help them find hidden prey. One important feature is their keen sense of smell, which allows them to detect even small amounts of blood or other odors in the water. Sharks also have electroreceptors called ampullae of Lorenzini, which enable them to detect the electromagnetic fields produced by living organisms, including their prey. In addition, sharks have a sensory organ called the lateral line, which helps them detect movement and vibrations in the water, similar to how hearing works in land animals.