Swordfish eggs are tiny floating globes about 1/16 of an inch(0.16 cen- timeter) in diameter. They hatch after about two and a half days. The baby swordfish bears little resemblance to the adult. Its body is covered with scales and lined on either side with four rows of spiny plates The dorsal fin runs the length of the body, and both jaws extend in slender swords of equal length. The baby has sharp teeth. By the time the fish is from 2 to 4 feet(0.6 to 1.2 meters) long, the scales, plates, and teeth disappear. An adult swordfish has no teeth at all. The single dorsal fin of the baby separates into a high, backward-curving lobe and a smaller fin on the tail. The lower jaw shortens and the upper jaw grows to a heavy, saberlike beak