This thing is HUUUGEEEE and just to put things in perspective, it is comparable to a Boeing 373 airplane and its tongue alone weighs 4 tons. This Grizzly bear sized catfish measures in at nearly 9 feet long, and basically as big as a grizzly bear. save hide report. What’s the biggest sea creature you’ve ever caught? 1. Sort by. It weighs around one ton of weight and females are usually larger than males. Largest Sea Creatures Ever Caught. 11 comments. share. The 10 Biggest Sea Creatures Ever Caught.....You won't believe that fishermen actually caught these gigantic sea monsters! Close • Posted by 1 hour ago. Largest Catfish Ever Caught - Thailand. Log in or sign up to leave a comment log in sign up. Dakosaurus was first discovered in Germany and, with its odd reptilian-yet-fishy body, was one of the top predators in the sea during the Jurassic period. One of the biggest and dangerous deep-sea creatures, Giant squid can grow up to 59 feet in length making it one of the biggest animal on the planet. (Story continues below image.) Dakosaurus. It might come as a surprise that the largest animal ever recorded still lives today, although it is on the endangered species list. The Blue Whale is the biggest animal on earth known to man on both land and sea. What’s the biggest sea creature you’ve ever caught? By Jacqueline Howard. But one of the largest creatures to ever swim the the sea wasn’t exactly a fearsome predator; Shastasaurus was a specialized suction feeder, eating mainly fish. 100% Upvoted. Pristine fossils recently unearthed in southeastern Morocco have been identified as the remains of a bizarre sea creature that -- with a body that spanned about seven feet -- was once the largest animal on Earth. 9. You can imagine the size of Giant squid because they can be as long as a school bus. This Prehistoric Sea Creature Was Once The Largest Animal On Earth. Featured Image Credit: Youtube #1 The Blue Whale . Scientists on a research vessel spotted a giant creature that has been compared to a mass of silly string floating off western Australia. When people think about the largest animals that ever lived, dinosaurs are often the first thing to come to mind. This might just be the largest freshwater fish ever on record.