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Marlins are among the swiftest fish and greatest leapers. While the sailfish are commonly regarded as the fastest swimming fish, the blue marlin offers strong competition. It is one of the few fish that can swim fast enough to eat tuna species on a regular basis. In fact, marlins can attain speeds of up to 50 MPH (80 km/h). Furthermore, when they are hooked on a line, they struggle heroically, sometimes jumping more than 40 times.

The marlins' speed makes them fierce predators. Rushing a school of fish, marlins thrash with their bill, wounding and killing many fish unlucky enough to be in their path. Once the slaughter is finished, they return to feast on the dead and wounded.

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Science EncyclopediaScience & Philosophy: Macrofauna to MathematicsMarlins - Taxonomy, Speed, Species