What animals are there in the sea?

Jelly Fish (English name: Jellyfish) is an important plankton in aquatic environment, including Echinocephala, Daphnopoda, Cruciferae and Cubea. Jellyfish is a very beautiful aquatic animal. Its shape is like a transparent umbrella, and the diameter of the umbrella is large or small. The diameter of the umbrella of the big jellyfish can reach 2 meters.

2. Hairtail belongs to trichiuridae, a bony fish of Vertebrate Subdivision of Chordata, Perciformes. Also known as nepotism, fat belt, oil belt, toothfish and so on. , is fierce. Qingdao and Rizhao city along the Yellow Sea are called snakeheads. Hairtail is flat as a ribbon, silvery gray, with light gray dorsal fin and pectoral fin with tiny spots, black tail, and the tip of hairtail is larger, gradually tapering towards the tail, with a total length of about 1 meter.

3. Octopus: The general name of 252 species of marine mollusks belonging to 26 genera of Octopodidae. As the largest family of Cephalopoda, it can be divided into deep-sea Polypoda, Fine Foot, Fine Foot and Octapoda. The body is ovoid or ovoid, muscular, with narrow hair cavity opening and generally no water holes on the body surface.

4. Humpback whale (scientific name: Megaptera novaeangliae, also known as humpback whale), whose name "seat head" comes from Japanese "seat head", which means "pipa" and refers to the shape of the whale's back. This is a tropical warm haijing. The body is short and wide, generally as long as 13~ 15 meters. Humpback whales are famous for their jumping posture, long front wings and complex calls. There are many pairs of activities during the activity. I have a gentle personality and a migratory habit, but I swim slowly.

5. Dolphin is the general name of a class of aquatic mammals in Dolphinidae (scientific name: Delphi). They are small or medium-sized toothed whales, which widely live in the oceans of the world, and are also distributed in brackish water and fresh water near inland sea and river estuaries. Some species are found in inland rivers. Usually like to live in groups and prey on fish, squid and so on.

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