What is the top speed of the sailfish, considered to be the fastest fish in the world?
up to 50 mph
up to 70 mph
up to 90 mph
well over 100 mph
Clocked at speeds in excess of 68 mph, some experts consider the sailfish the fastest fish in the world. Easily recognized, sailfish are named for the spectacular sail-like dorsal fin that extends for nearly the entire length of their silver-blue body. Additionally, the sailfish's upper jaw is far longer than its lower jaw, forming a distinctive bill that looks like—and sometimes acts like—a spear.