1. Big Squid Because it lives in the deep seabed of the Pacific Ocean, people don't know much about the mysterious "Big Squid". A popular legend among sailors makes this mystery even more legendary: their huge tentacles can extend directly from the seabed to the sea level, and their powerful suction cups can tear the hull. It is reported that the largest squid in the deep-sea waters of the Pacific Ocean and Atlantic Ocean, with a body length of about 20 meters and a weight of about 2-3 tons, is the largest invertebrate in the world. Its temperament is extremely fierce, it feeds on fish and invertebrates, and it can fight giant whales. In fact, the "big squid" can generally grow up to 18 meters long and weigh 900 kilograms. 2. Sperm Whale Sperm Whale is the largest species among toothed whales, with a huge head and a blunt front end, so it is also called a giant whale, also known as a real whale. The adult sperm whale is18 ~ 25m long and weighs 20 ~ 25t. It mainly inhabits the sea area between 70 north and south latitudes. Short body, slow and clumsy, easy to kill. The existing stock decreased from 850,000 to 430,000. 3. Red King Crab Red King Crab The scientific name of Red King Crab is Kamchatka Stone Crab, and its weight can reach 10 kg. Huge pliers can pinch off people's fingers at once. Spreading the Red King Crab with a length of 1.5 m and a weight of 10 kg can bring great disasters to other creatures in the marine world. Red king crabs swarmed, devouring clams and all kinds of shellfish, as well as seaweed, dead fish and fish eggs. 4. anglerfish anglerfish with an irritable face lives in the "most unpleasant" environment in the world-the darkness of the ocean floor. Anglerfish (scientific name? ? ? ? ), also known as "electro-optic fish", is a strange-shaped fish that lives in the ocean. The body length is generally 45 cm and the longest is 2 meters. There is a row of sharp spines at the junction of the tail root and the fish body, and the sharp spines can produce venom. Looking down from the back of the fish, it looks like a lute, so it is called "anglerfish". 5. killer whales killer whales powerful killer whales feed on other fish, seals and even sharks. They can drag seals on the ice and flying seabirds into the sea. 6. fangtooth fish fangtooth fish, a strange fish with terrible looks, lives in tropical and cold temperate waters, but it is basically impossible for us to "meet" with them in the sea, because most of them live on the seabed at a depth of 5000 meters. 7. Blue Ring Octopus Blue Ring Octopus Although they look only the size of a golf ball, they can give a fatal blow to the enemy. Their venom is enough to poison a person, and there is no antidote. 8. Sea Moth This deep-sea fish is famous for its slender body and huge sharp teeth. Sea moth fish are only 15 cm long, but they are really a group of formidable predators. There is a small light on their chin to lure their prey. 9. coelacanth coelacanth Modern coelacanth is a deep-sea fish of the family Latimeriidae, hence its name because of its hollow fin spines. Bigger than most fossil species. It is a fierce predator, with a thick and sticky body, limb-like fins and flexible movements. Coelacanth appeared 350 million years ago, when it was extremely abundant on the earth. The coelacanth, once considered extinct, was rediscovered in 1938. This terrible-looking fish dates back to 400 million years ago and can be called a living fossil. 10. Stonefish Stonefish are the most poisonous fish in the world, and they are also clever camouflage masters, which can perfectly blend with the seabed. Stonefish don't take the initiative to attack, but if you accidentally step on them, you will be paralyzed and dead.