Bluefin Tuna: 'Ultimate Athletes': Bluefin can drag fishing boats for miles! Sleek and super muscular, they can also travel an incredible 100 miles in a single day. Bluefin will range across entire oceans in mere weeks. And unlike most large fish, Tuna travel in schools as many as forty strong...corralling prey in a huge, shimmering surge, feeding and hunting as a pack.

Wahoo: 'Ultimate Speed Demons': Built like streamlined torpedoes, Wahoos are one of the fastest, most elusive fish in the sea. They can hit top speeds up to fifty miles per hour...have razor sharp teeth...fast beating tails...and are very hard to catch. Wahoo dominate tropical waters' food chains. Along with Marlin, they are considered among the most elite sport fish in the world!

Marlin: 'Ultimate Fighters': The ocean's heavyweight fighting champs. They club and spear their opponents, and come leaping out bills-first. Marlin also have special "brain heaters" that enable these big predators to stay calm and agile - even capturing prey in cold, deep water. Hooked on fishing lines, Marlin will literally fight till they die. Fortunately, today's anglers just want the thrill - they release these amazing hunters safely alive.

Alligator Gar: 'Ultimate Prehistoric Predator': Meet the scariest looking prehistoric whoppers to rule the American South! Alligator Gar have gills and a rudimentary lung that enables them to breathe air. This 'bizarre' biology helps the fish survive out of water for more than thirty minutes. And gar can survive in stagnant swamps when nearly every other species dies.