What are the five basic shapes of caudal fins and what are their uses?

The five basic shapes of caudal fins are forked, rounded, square, pointed, and lunate. Forked fins provide speed and agility, suitable for fish that need quick bursts of movement. Rounded fins offer maneuverability and are often found in slower-moving species. Square fins provide stability, while pointed fins are efficient for sustained high-speed swimming, often seen in predatory fish. Lunate fins are streamlined for fast swimming in open waters.