Dolphins swim primarily using their tail which move in an up-and-down motion, propelling the dolphin forward with powerful thrusts. This undulating movement creates a strong, consistent push against the water, allowing the dolphin to glide efficiently and swiftly through its aquatic environment. The tail’s flexible, muscular structure enables precise control over speed and direction

The dolphin kick is a type of swimming technique primarily used in the butterfly stroke and underwater dolphin kick. Just like a dolphin's tail, it involves simultaneous movement of both legs in a fluid, undulating motion, propelling the swimmer forward with each kick.