Caudal fin is best described as?

Caudal fin is best described as?

• A. Dorsal fin used for stability.
• B. Caudal fin, or tail fin, used for propulsion and steering.
• C. The pair of fins on the sides used for steering.
• D. Pectoral fin used for steering.

Answer: (C)

The caudal fin, or tail fin, mainly provides propulsion. By swinging the tail side to side, the fish pushes water backward and moves forward, acting like a propeller. Steering and maneuvering are mostly handled by the paired fins on the sides, the pectoral fins, with additional control from the dorsal and anal fins for stability. So, the caudal fin’s primary role is thrust, not steering, and the side fins are the ones used for steering.

The caudal fin, or tail fin, mainly provides propulsion. By swinging the tail side to side, the fish pushes water backward and moves forward, acting like a propeller. Steering and maneuvering are mostly handled by the paired fins on the sides, the pectoral fins, with additional control from the dorsal and anal fins for stability. So, the caudal fin’s primary role is thrust, not steering, and the side fins are the ones used for steering.