The giant bony tongue fish is a species of ray finned fish, bony tongue fish family, and giant bony tongue fish genus, also known as walrus fish. Adult fish can grow up to 2-6 meters in length and weigh up to 100 kilograms. Large in size, elongated, slightly flattened. The skull is composed of free plate-like bones. They often inhabit freshwater rivers. Eating fish, shrimp, and frogs. Heavy in size and slow in movement. Meat can be made into dried or salted products and is a popular food in production areas. After drying, teeth can be used as a substitute for filing tools. Live fish have beautiful colors and are used for viewing. Originating from the Amazon River in South America, it is one of the largest freshwater fish in the world.

Itachi shark, a large shark belonging to the genus Itachi in the order Siluriformes. Itachi shark, distributed in the Yellow Sea, East China Sea, northeast and southwest waters of Taiwan, and South China Sea; Widely distributed worldwide between 40 degrees north and south latitude in various oceans. The weasel shark is a warm water shark with a fierce nature. The weasel shark is the only ovoviviparous species among true sharks. Weasel sharks are considered to be more aggressive sharks, although they usually avoid humans, they may also exhibit aggressive behavior if humans cross or dive within their territory. The feeding habits of the weasel shark have earned it a nickname - 'the garbage bin of the sea'.