Now as soon as sharks are mentioned, people will immediately feel frightened, and the horrible scenes in many film and television works come to mind, and to talk about sharks can give people such a ferocious impression, the earliest origin is attributed to the movie "Jaws" released in 1975, so are the sharks in reality really like what is shown in the movie? Today Xiaobian will take you to see it together, the content of the article is a bit much, everyone moves a small bench Oh!
The movie "Jaws" mainly tells the story of a shark in a small town in the United States to kill unscrupulously, and later because the film is so successful, it has even formed a shark culture in the film and television industry, so many shark effect film and television works appear on the screen in an endless layer.
People gradually equated sharks with danger, and fishermen began to hunt in large quantities in an attempt to eliminate this terrible biological population, which was frustrating the social climate of the time and encouraged such inhumane behavior.
Since the release of the movie "Jaws", for more than forty years, there have been continuous innovations in similar shark-themed film and television works around the world, no matter how the plot changes, what remains unchanged is to repeatedly strengthen the image of shark cruelty. But many people do not know that Peter Benchley, the author of the "Jaws" movie story, has repeatedly said publicly that if he had been able to understand the shark's ecosystem and its importance in the natural biological world, he would never have written a story like "Jaws", and was deeply sorry for the ecological impact.
Before peter benchley's death, he was a full advocate of shark conservation, and if we set aside the horror impression given to sharks by film and television works and begin to understand what real-world sharks really look like, we will find that sharks are not cold-blooded killers, and they can even be said to play an absolutely important role in the ecosystem of the ocean.
In various film and television works about sharks, it always appears on the screen with the fierce appearance of a blood basin with a large mouth, which constantly deepens people's fear.
When it comes to sharks, their body structure is indeed a natural killing machine, which appeared on Earth about 400 million years ago, and can be said to be one of the oldest creatures that exist on Earth today. Its whole body is made up of cartilage, and the arteries and veins are evenly distributed in various parts of the body, which allows it to control its body temperature at will so that it can survive in places where the temperature is extreme.
The shark has smooth skin, streamlined body, which not only plays a protective role, but also allows it to be extremely fast in the ocean, coupled with extremely sensitive senses, these are its natural body structure, is the fundamental reason why the shark can survive on the earth for such a long time, but it does not mean that it will be brutally killed.
In fact, sharks have a smart and gentle personality, in addition to defense and foraging, almost no unnecessary aggressive behavior, basically only eat the food they need, and many times, the shark's staple food is those who are dying, even dead fish, in the marine ecology play the role of scavengers.
According to statistics, only about 10 people die every year due to shark attacks, most of them are because of offensive counterattacks in the habitat area, and only a few sharks will attack humans, the vast majority of them will not take the initiative to attack, it can be said that the probability of occurrence is very low, but every year more than hundreds of millions of sharks are hunted by humans.
In the summer, there are thousands of tourists or surfers on the seashore, the original shark habitat is thus stepped on by humans, sometimes sharks out of the awareness of the protection of the field and bite humans, not for predation, but to drive away, and surfers with floating boards at sea to carry floating sinks, from the perspective of the seabed, sharks may be mistaken for seals and rush up to attack, or lying on the floating board, kicking the water with their feet on the water, will be mistaken for bait fish riot and then attack.
In most cases, sharks usually ignore the existence of humans, they have no interest in hunting humans at all, and if humans are really shark food, with their size, they are absolutely capable of eating humans.
After a long period of research, scientists found that the nature of sharks often chooses to avoid humans, and the bridge section of the film and television works also makes many people think that sharks can detect and attack within a few kilometers as long as they smell the smell of human blood, but is this really the case?
Many people abroad have done relevant experiments, proved that those are fictional bridges, they will open the box containing human blood and put it into the sea, the sharks react to human blood super calmly, and swim by themselves, and did not arouse the excitement of the sharks, which is completely different from the plot in the movie.
So the experimenter changed to cow blood and fish blood, did not expect that when the box was opened, the sharks began to rush to the blood box madly, and kept hitting back and forth, even the recording camera was also knocked crooked in the process of grabbing food, which can be concluded that the attraction of animal blood far exceeds human blood, this is because the amino acids in cow blood and fish blood are much higher than the content in human blood.
In fact, sharks can only smell a drop of blood in the Olympic-sized swimming pool, in a range of miles, sharks actually can't smell anything, it is not as high-precision as radar, so the bloodthirsty shark in the movie, in fact, this is a serious misunderstanding, and the shark's cold appearance seems cruel, but there have been two incidents in history in which sharks have helped humans.
In the summer of 1986, American college student Nasaraine and her friends took a boat to an island in the South Pacific, on the way back, the boat had an accident, they had to struggle to climb into the lifeboat, but because the lifeboat was too small, Nasharin chose to jump into the sea and swim back to the shore not far away, suddenly she saw a black wood floating on the sea in the distance, but when she saw clearly, she found that it was a shark two or three meters long, and then swam to her, but surprisingly the shark did not hurt her. Natharim reacted to this, and it turned out that the great white shark was to prevent other sharks from attacking her.
In 2010, a 41-year-old man from the central Pacific island nation of Gillibas, who was stranded at sea for 105 days, was later awakened by a noisy sound, when he opened his eyes, saw the shark turning the canoe he was riding in the direction of the distant ship, the man also stood up and desperately cried for help, and finally the people on the boat found him and helped him to be with his family, the man was not only grateful to those people, but also to the shark that saved his life, whether by coincidence or intention, Sharks helping humans may not be more than that.
In real life, humans hunt sharks mainly for expensive ingredients - shark fins, these parts in the eyes of humans, have a high economic value, so when fishermen catch sharks from the sea, they will cut off shark fins and throw the whole shark into the sea, sharks that lose their fins cannot swim, and eventually can only die in the sea. Blackheart merchants package shark fin as a status-symbol high-grade food, but what diners don't know is that sharks, as the top species of the food chain, also accumulate more heavy metals in their bodies than other fish.
Sharks also have many medical contributions, such as the discovery of a special compound in the tissues of the white-spotted horned shark that can have a therapeutic effect on various chronic infections in the human body.
In addition, the body structure of the shark has also inspired modern scientific design, the most famous is the famous shark suit, this dress is to imitate the skin of the shark, in the water can guide the flow of water around the athlete's body, thereby increasing its own speed, but later was explicitly prohibited from using this material of the swimsuit.
Film and television works bring people to the misunderstanding of sharks, Xiaobian feels that in a short period of time will continue to exist, for sharks, humans are the most terrifying existence, the earth's ecology absolutely still needs sharks, you say? Welcome to leave a message in the comment area, if you like the editor's article, remember to like and pay attention to Oh, thank you very much!