What is the fastest swimming animal?

These streamlined beasts have been clocked at 68 miles per hour (30.4 meters per second), which, to be fair to the other fish in the sea, includes the sailfish's leaps into the air, during which it moves faster than it does in the water. Think you could out-swim a sailfish? read more

If you were to put this speedy fish in a pool to swim a 200-meter race, he could do it in less than 10 seconds. For comparison, Olympic gold-medalist Michael Phelps swims the 200-meter freestyle in about 1.42 minutes, which translates to 4.7 miles per hour (2.1 meters per second). read more

The fastest land animal is the cheetah, which has a recorded speed of 109.4–120.7 km/h (68.0–75.0 mph). The peregrine falcon is the fastest bird and the fastest member of the animal kingdom with a diving speed of 389 km/h (242 mph). The fastest animal in the sea is the black marlin, which has a recorded speed of 129 km/h (80 mph). read more

Blue to gray in color and reaching up to 10 feet (3.05 meters) in length and 220 pounds (99.8 kilograms) in weight, the sailfish is considered the fastest marine creature. read more