The largest swordfish recorded being caught was in Chile in 1953, weighing 1,182 pounds.
Males mature when they are between three to four years old while females take a year longer.
Swordfish are not social and do not swim in schools. They prefer to swim completely alone or not closer than 10 meters to another one of their kind.
Swordfish generally eat every night. It is easier for them to rise to surface level in the dark to sneak up on smaller fish.
One of the most fascinating swordfish facts is the way that they can select organs to heat. They are cold-blooded yet they can heat only their brain and eyes which significantly improves their vision. Out of 25,000 bony fish species, swordfish are one of the only 22 that have this ability.
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