There are sharks, jellyfish, dolphins, whales, seahorses, octopuses, squid, lobsters, sea lions, starfish, corals, crabs, octopus, lobsters, shellfish, sharks, sea cucumbers, squid, shrimp. , dolphins, goldfish, tailfish, oysters, corals, sea urchins, etc.
1. Sharks: belong to the phylum Cartilage, subclass Elasmobrancha, phylum of vertebrates, marine organisms, a few species can enter fresh water and are medium to large sized marine fish.
2. Turtle: It is an animal of the family Turtleidae and genus Turtle, living in the upper layers of offshore subtropical waters. Some species of sea turtles live in food-rich waters during the winter and migrate long distances during the nesting season.
3. Sea lions: comprising 5 genera and 7 species, distributed throughout thenorthern hemisphere. They are small and generally do not exceed 2 meters in length. sea lion family. Gentle temperament, active in groups.
4. Penguin: This is the general name for all species of birds and penguins. It is known as "the boat of the ocean. It can live and breed in the cold polar climate."
5. Dolphins: Dolphins are a general term for a class of aquatic mammals in the family Delphinidae. They are small or medium-sized toothed whales that live widely in the world's oceans. They are also found in brackish waters close to land. seas and river estuaries. Some species are found in inland rivers. They generally like to live in groups and feed on fish, squid, etc.
There are many types of marine life
. It is estimated that there are many types of creatures in the world's oceans. There are at least 200000 species of marine life, with a total biomass of approximately 34.2 billion tonnes. However, it is not possible to say precisely how many species there are. the ocean.
First, so far, the scope of human exploration of the deep sea is extremely limited, and it is estimated that there are still some deep-sea creatures that have not yet been discovered; , due to natural hybridization and genetic variation, new species continue to appear, while old species gradually disappear. The number changes almost every moment; third, some marine organisms also have the same or different names. p>