The sailfish (Istiophorus platypterus), a species of marlin, holds the title of the fastest marine creature. These sleek fish are blue to gray in color, reaching up to 10 feet (3.05 meters) in length and weighing around 220 pounds (99.8 kilograms). Their average speed is an impressive 68 miles per hour (approximately 109 kilometers per hour) as they dart through the ocean waters. Sailfish favor the upper reaches of the sea and may occasionally swim great distances to catch their prey12.
