The great white shark, which lives in the deep sea every day, is one of the fiercest fish in the deep sea. Great white sharks have existed on the earth for 300 million light-years before Tyrannosaurus rex, more than 500 million years ago, and have basically not changed in the past 100 million years. In ancient times, the great white shark was called mako, mako shark and sand fish. It was a troll in the deep sea, so it was called "sea wolf". There are also whale sharks, sharks. Nowadays, because most people think that the cartilage tissue of great white sharks (that is, dried abalone) has a high content of protein, it is not correct. Protein content far exceeds that of dried abalone. Because people's consciousness is not correct, great white sharks have been killed by many people in decades. Authoritative experts analyze that if they go down like that, great white sharks will become extinct.

Fish school ("Erya") Shi Zhen said: This is not a sand fish in the sea, but a middle fish in a stream in the south. In the sand ditch, swim by blowing sand and eat by sucking sand. The meat is round, and so is Tuotuo. Shizhen said: Great white shark, nearly four or five inches long, with the head and tail as big as each other. Head picture of a catfish lip. Fine fish scales, reddish brown, with black spots. There are thorns in the back, which is a little hard. Its little tail is different. Xiaohalang fish

The great white shark is considered by some people to be one of the fiercest fish in the deep sea. As everyone knows, the larger whale shark among the great white sharks feeds on small and medium-sized marine animals, similar to baleen whales. Because of the similarity of ingredients, after a long microbial evolution, they look very similar to baleen whales, which is called convergent evolution. Therefore, the name of whale shark is natural.

Whale shark is naturally the largest of the existing great white sharks and the largest of the existing fish species. Nothing is fiercer than sharks. Their strong jaws can tear almost everything they hunt. They live at the top of the chain of marine animals every day. Fish must be maintained. The hot shark fin soup on everyone's dining table is made of dorsal fin. Once the dorsal fin is covered, the fish will sink to the bottom of the sea due to imbalance and starve to death. The nutrition of dried abalone is similar to that of a bowl of vermicelli, so eating dried abalone is worthless.

There are about 380 species of great white sharks in the world. There are 30 species that will attack people actively, 7 species are likely to cause damage, and 27 species are at risk because of their body shape and growth habits. According to the investigation of animal fossils and biologists' calculations, the great white shark has lived on the earth for about 400 million years, existed as early as 400 million years ago, and its appearance has not changed much, indicating that it has strong viability and is called a deep-sea hunter.

Sharks are large carnivorous great white sharks in the deep sea. Great white sharks are hard and sturdy, and they are spindle-shaped horizontally. The nose and mouth vary according to the type, and there are sharp ones, such as gray sharks and sharks; There are also big and round ones, for example, tiger sharks and wide tiger sharks have flat heads. The small tail (caudal fin) that is vertically upward is probably crescent-shaped, and the upper end of most kinds of caudal fin is much higher than the lower end.

Most great white sharks eat benthic creatures, such as fish. Fish species make a living by wounded deep-sea mammals, fish species and rotten meat, and eliminate poor team members among small animals. Fish can also eat the waste left in the boat and other waste. In addition, some great white sharks can feed on animals, such as deep-sea mammals, fish species, sea turtles and hairy crabs. Some great white sharks can stop eating for months, and sharks are one of them. It is understood that sharks need to eat once every month or two.

A shark is a predator who is good at hiding. Because sharks are huge, they are not as handy as other great white sharks. But the shark is a very good hunter, because it is always unexpected. Its upper body color is dim and its lower body is bright, so they can quietly approach to hunt according to this kind of protective color. Because its color is close to the bottom of the sea, it will be found when it launches an attack. Although it rarely attacks from above, when it attacks from above, the milky bottom gradually blends with the bright sky reflected by the sea.

In ancient times, the great white shark was called mako, mako shark and sand fish. It was a huge object in the deep sea, so it was called sea wolf. Shark's nasal cavity is located in front of the head, abdomen and mouth, and some of them have nose-mouth sulcus, which is connected in the middle of nose angle. The folds of olfactory sac increase the total contact area with the external natural environment. Great white shark belongs to cartilaginous fish, and its body has no bait. The key is to adjust the ephemera in the liver.

Before that, it was widely believed that great white sharks had never slept. According to the California Museum of Nature, whitetip sharks and tiger sharks are actually asleep. They sleep during the day and come out for theme activities at night. Sharks are daily predators. Other types, such as nurse sharks, drive water according to the air outlet and give stable oxygen-rich water according to the gills, so that they can breathe in when they are still. The human organ that controls swimming-the intermediate detection frequency meter is located in the spinal nerve, which makes the great white shark swim subconsciously. But because the fish has no upper eyelid, it is impossible to tell whether the great white shark is asleep or not.