Perhaps we shouldn’t be surprised that a baby swordfish is extremely
tiny, but for an animal that grows up to 10 feet long and weighs nearly
1,500 pounds, it’s still astonishing to learn their offspring are so
miniscule. PhD candidate Juan C. Levesque shot this amazing close-up of a
baby swordfish perched atop a human fingertip for scale. Incredibly,
this tiny fish will grow up to 29 inches in just its first year of life.
You can read more about the rapid growth of swordfish at Florida Sportsman.
Most swordfish grow to be about 3 meters (9.8 feet) in length and some get even bigger still, but when they first hatch from their eggs they’re only about 4 millimeters long. These itty-bitty larvae grow at an astonishing rate, feeding on a diet of other fish larvae and zooplankton, reaching a length of up to 39 inches (3.25 feet) during their first year of life.