What is the fastest fish in the ocean? Not all experts agree, but one species widely considered the titleholder is the sailfish, capable of reaching top speeds of nearly 70 mph. Let's dive deeper into the features and behaviors of this swift and agile predator. Sailfish, also known as billfish, are easily recognizable due to their sail-like dorsal fin that extends for almost … [Read more...] about The Sailfish: A Closer Look at the Fastest Fish in the Ocean