Sailfish

Speed: Around 68 MPH
Our first fish on the list, it is obvious now that we’re not only going to be referring to land animals and how fast they run. We’re also going to discuss the fast swimmers in our world’s waters. The Sailfish is among the fastest in the water, with the highest recorded speed netting a huge 68 mph in the water. While they often look like swordfish, they are not related. Of course, the Sailfish is located only in saltwater with just two species known as of now.

Both tend to be native to different areas of the Ocean. One is located in the Indo-Pacific area of the Ocean, while the other is located in the Atlantic Ocean. Due to this, they tend to be quite common to come across for people. On top of that, this species is said to have been around for quite a long time. It can be traced all the way back to the Paleocene period, which is between 55 and 65 million years ago. That predates modern-day human beings!