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Of all the sharks, the biggest threat to humans is not the great white shark, but the bull shark, because it is the only shark that can live in fresh and salt water, and they are also known as "the most dangerous sharks in the world". The famous movie "Jaws" is based on a real case, in 1916, there were 5 shark attacks on humans in 12 days in the United States, resulting in 4 deaths. At that time, the case-handling personnel determined that the culprit was the great white shark, and later after in-depth investigation by scientists, it was found that the bull shark was the real perpetrator, and the great white shark was just a "back pot man".
The bull shark's official name is the bull shark, which is named for its strong as a cow's body, a broad and flat "cow nose", and super aggressiveness. It can grow up to 11.5 feet and weigh between 200 and 500 kilograms, which is smaller than the size of the great white shark.
The most terrifying thing about bull sharks comes from three sources. The first is that its sense of smell is extremely sensitive, and it can sniff out a drop of blood diluted in 100,000 liters of water and track its prey. Secondly, its mouth is disproportionately large, lobed and curved, full of sharp teeth and a clear division of labor: the sharp lower teeth can stand upright or slightly oblique, which is convenient for catching the prey and firmly controlling the prey; the triangular jagged upper teeth are used to cut and swallow food, and can also pierce the prey, thereby tearing the flesh of the prey. Of all the shark species today, the bull shark has the most powerful bite force, even stronger than the infamous great white shark. The results of the study noted that bull sharks' body size, jaw and jaw muscles allowed them to produce 1300 pounds of strength when biting. The third is that it has a large appetite, never picky eaters, as long as it is a living creature in the sea, such as a variety of fish, sharks, stingrays, cephalopods, crabs, seabirds, turtles, seals, dolphins, whales, animal carrion, etc., it almost does not refuse. It often runs to the mouth of the river to hunt hippos, rhinos, crocodiles, etc., and even other sharks, including great white sharks. Bull sharks are described as a "cold storage" where food can be stored in the stomach for up to 10 days, or even a month.
Fearless bull sharks, with almost no natural enemies in the ocean, can be said to be pampered and well-fed. However, another fatal drawback of bull sharks is greed. The gluttonous bull shark is not always satisfied with the status quo, although there is still a lot of undigested food in the stomach, and it will go out to forage for food every three to five minutes. Someone found a dead bull shark on the river in Brisbane, Australia, originally thought to be starved to death, but dissected the shark's stomach but found a large pile of undigested food. Therefore, scientists have concluded that some bull sharks are not starving to death, but are propped to death.
The reason is actually very simple, people who raise flowers often say that flowers are watered to death, but stupid bull sharks do not understand. What the Taoists call resting grain and breaking the valley means: If you want to live forever, your belly is always empty; if you don't die, there is no in your intestines. "This tells us that a person should keep the inner body ethereal at all times, and not eat indigestion and damage the stomach." Nan Huaijin also said: Nowadays, very few people are starving to death, and most of them are eating to death. He believes that a person's body really needs to do fuel, energy of the amount of rice is only half a bowl, if you eat three bowls, the other two and a half bowls are wasted, and many diseases are caused by stomach blockage, lack of qi, to less disease to make the stomach healthy. The Muslim month of Ramadan; Catholics and Christians do not eat for a day; those who learn yoga fast for one day a week, and I guess this is also true. The Zen master Baizhang, who founded the Chinese Buddhist jungle system, also said: "Diseases are eaten by food reduction as a soup medicine." This means that no matter what the disease, you must first clean up the stomach and intestines, which is better than taking any medicine.
These truths have been told a lot by predecessors, and no one has told the bull shark to it, but unfortunately most people can't do it even if they understand it. Why? It's human nature. It is the five "thoughts" mentioned in the Buddhist scriptures: greed, anger, delusion, slowness, and doubt, which are innate to a person. What is greed? Greed for fame and profit, greed for food and drink, greed for everything in this world. Some people think that they are not greedy, and they do not want to eat or drink anything, fame and wealth. In fact, if he really comes to a plate of mountain treasures and seafood, he will still have to eat a little more when he is full; if he really comes to a place of fame and fortune in front of him, he will still have to do it no matter how bad his health is. Yuan Ming of the Qing Dynasty said: "Not to talk about it is not necessarily a clear stream. "People who have been high all their lives just don't have a chance, and when the opportunity comes, it's the same." Many people say that they don't want fame and profit, that is, he is not qualified to want it, he can't reach that high position, and when he sits in that high position, many people support him, many people serve him, and at that time, if he is asked to come down, he may not be willing to give up.
Therefore, Maitreya Bodhisattva's teaching on diet in the Yogi's Treatise on the Earth is "what is the cloud of food knowledge", that is, the practitioner should know the amount of food and drink. What is dietary awareness? "It is said that he has kept the roots, and chooses what he eats with righteous thoughts." Not for advocacy, not for ease, not for decoration, not for strictness, and for what is eaten. Eat what you eat, dwell in the body, for temporary support, for the sake of quenching hunger and thirst, for the sake of taking the Brahmanical deeds, for the sake of breaking the cause, for the sake of the new, for not to be reborn, for the sake of preserving lily and living in peace and tranquility. If it is called yu food knowledge. This means that to eat something, you must have a mind, you must have a mind, and you must choose your diet with a positive thinking mind. Eat what you should eat, eat not to show magnanimity, not to put up a shelf for people to see, to eat is not for your body to grow glowing, face red, look good, eat what we should eat. Why eat what we should eat? To live for the sake of this body for the time being; to have a dry mouth, to be hungry, to have to eat; to practice; to cut off all the troubles of the past, not to regenerate them; to maintain this limited body so that it is disease-free and can be peaceful and happy. What does De'an Yin Happy do? No crime.
This is true of eating and drinking, and the same is true of other desires. As far as human desires are concerned, Confucius's words are recorded in the Book of Rites: "Men and women who eat and drink, the great desire of man is to survive." Everyone, from the emperor down to the people, has great desires. However, human desires are endless. When a person reaches a certain position, a certain environment, a certain time, a certain space, his desire will change, and his progress will continue to increase. Ordinary people, who have satisfied the diet of men and women, are seeking fame and wealth. A man who has become a prince, in addition to the basic desires of men and women to eat, his great desire is to reign in the world, to be greater and more powerful. After the King's landing in the world, he still can't be satisfied, hoping to live forever, and always hold this power. As a vernacular poem in "Xie Ren Yi": "Running all day long is only for hunger, only to think about food when he is full, to have enough food and clothing, and to want to be beautiful and beautiful." Marry a beautiful wife and give birth to a child, hate no field and less roots. Buy to the countryside more expansive, in and out of the boat-free less horse riding. The head of the slot buckled mule and horse, and sighed that no official position was deceived. The county master book is still too small, and he wants to hang purple clothes in the middle. I did the Emperor's Immortalism, and I wanted to ascend to the sky and fly across the crane. If the world wants to be satisfied, except for Nanke Yimengxi. ”
Therefore, the words "desire without greed, Nanke a dream" are very reasonable, life has instinctive desires, desire can be, do not be too greedy, and finally it is a dream. In fact, like the bull shark, we are just ordinary people who are easily lost and lack self-discipline. Therefore, the ending of the bull shark is worthy of our calm reference and reflection, so that our already waddling life steps are as stable as possible.
I think if the bull shark knew these truths, it would never eat and drink like this again.