(Photo: Juan C. Levesque)He's perhaps only an inch...  ...d fisheries professional, says that the broadbill swordfish (Xiphias gladius) is called the "gladiator of the...  ...his fighting fish prized by fishermen:On average, swordfish grow about 14 inches per year, but there are diff...  ...t there are differenc...

Photo: Cari Segelson/Florida Fish and Wi...  ...ecies large enough to be possibilities, including swordfish , tuna, sharks and whales. Giant squid...  ...think the most likely candidate was a swordfish