Sharks have a layer of crystals located behind their retinas called the tapetum lucidum that allows them to see around 10 times better than a human in low light. However, their depth is limited, as sharks can only see clearly about 50 feet ahead.
Ferry (Wikipedia) A ferry is a watercraft that carries passengers, and sometimes vehicles and cargo, across a body of water. A small passenger ferry with many stops, such as in Venice, Italy, is sometimes called a water taxi or water bus.