Author: Bai Xiaobai, Editor: Xu Dewen
The Spring Festival is approaching, the holiday is imminent, the epidemic can not go out, there will always be people ridicule: "The holiday is to eat and sleep, sleep and eat, pig-like life." "Do pigs really only eat and drink?" hum! You may really underestimate them.
In the United States, there is an invasive species known as the "super pig", ambitious male, in addition to eating, drinking and sleeping, but also hope to do a big cause, hit the F-16 fighter jet during the day, go to the cemetery at night to "dig the grave", live a song and swallow dance, and enjoy it. In just 30 years, they have conquered 39 states from 17 states, and it seems that it is only a matter of time before they conquer the entire Territory of the United States. The Americans had no choice but to issue a "pig killing order", and a human-pig war was fiercely staged. What kind of existence is this super pig? What is the final outcome of the Man-Pig War? Let's take a look at the past and present lives of American super pigs.
There are no pigs, there are good deeds to be carried into the ship, and there is no availability, put down the mountain... This is basically about the arduous pioneering history of American super pigs.
Pigs are divided into wild boar and domestic pig, domestic pig is a human domesticated wild boar, belongs to a subspecies of wild boar, first domesticated by China in 4900 BC, but there are also studies that say that West Asia domesticated wild boar before 6000 to 7000 BC.
American wild boars belong to the Eurasian wild boar. Originally brought by Columbus to the Caribbean in 1493 for future food, the Spanish explorer Hernando de Soto brought 13 pigs to Florida in 1539, and domestic pigs and wild boars have been sporadically introduced to the Americas ever since. Beginning in 1890, more Eurasian wild boar and Russian wild boar were brought to the United States for hunting purposes, and in the 1930s, Eurasian wild boars "moved" again to Texas and other places.
In the process, wild boars continue to hybridize with newly introduced wild boars, and also with domestic pigs abandoned or escaped by humans, becoming stronger and more ferocious, and are called "super pigs" by experts.
How powerful are the super pigs produced by hybridization? A 2013 report showed a wild boar with four small short hooves crossing the rough English Channel from Normandy, France, to Alderney Island in the Channel Islands, a 11-kilometer journey. Such a tenacious life was so admired that they shot it and cremated it because they feared it would bring a new virus.
But even so, for centuries the American wild boar has not been flooded, their population in the United States has been tepid, until the 80s of the last century, the situation began to get out of control, the wild boar population developed rapidly, only 30 years, from the United States 17 states to 39 states, north of the spread rate reached 12.6 kilometers per year, spread to the whole territory is basically only a matter of time.
At the same time, wild boars have also begun to flood in Canada, and according to the predictions of Ryan Brook, a biologist specializing in wild boars at the University of Saskatchewan, super pigs have spread to 386,000 square miles of Canada by the end of 2020, almost ten times that of South Korea, and are still spreading at 35,000 square miles a year, nearly an area of South Korea.
Super pigs, which are intercourse from different wild boars and domestic pigs, have narrow and deep eyes, long and wide ears, thick and short necks, and a weight of up to 600-700 pounds, and the head alone occupies one-third of the body length, which can be described as a veritable "big-headed monster". In addition, wild boars are notoriously small short legs, and because the inner hooves are larger and longer than the outer hooves, they are able to move quickly, with a maximum running speed of up to 40 km/h.
What is even more frightening is that the male wild boar also has two long fangs protruding from the mouth, developed dentures, strong pig heads, short and fast pig trotters, so that the wild boar can wantonly do evil for a long time, and even do such appalling things as stepping on the cemetery and "hitting" the fighter.
In 1988, a wild boar sneaked up to a Florida runway for sightseeing and got into close contact with the F-16 fighter jets that were landing. As a result, the $16 million fighter lost to Super Pig and rushed to the nearby woods, but the pilot successfully ejected and escaped the disaster with a scar. This may be the first case in history of a fighter jet being destroyed by a wild boar.
In 2013, the 36-hectare Willow Wild Cemetery in Texas was severely damaged, with grass uprooted, land turned over, and headstones torn down. What is even more infuriating is that in the next period of time, wild boars cultivate themselves in the woods during the day, sneak into the cemetery at night to turn over the soil and forage for food, and turn the cemetery inside and out.
The arrogant Eurasian wild boar has made great achievements in the United States, hitting cars, scaring tourists, eating wild game, the same does not fall, all play over and over again. In the game with humans again and again, the super pig continues to learn lessons and summarize experience, becoming more and more intelligent, more and more cunning, and can easily escape the "desperate array" carefully laid down by humans, and then begin to plot new provocations. For example, if you can't put it down with one shot, the super pig may run non-stop to a place more than a hundred kilometers away to start a new life.
Tired of playing on land, the super pig went to the water to play a new trick. Because wild boars do not have sweat glands, they will enter ponds, small rivers and other places with water to roll and cool down. As long as the wild boar stops, there will be no good results, they are happily rolling in the water, making the aquatic plants scream for their lives, soil erosion, stream sediment and a series of disasters follow. What is even more disgusting is that the flying wild boars also excrete poop into the water, and a large number of pathogens and parasites they bring with them also flow into the originally clear river, directly allowing a large number of fish to return to the west.
Destroying the ecosystem, letting the small fish and shrimp die, these may only be sprinkled water, wild boars carry at least 30 pathogens and 37 parasites, and can even directly endanger human life. For example, in 2006, the famous "poisonous spinach" incident in the United States caused 205 people in 26 states and Canada to be infected with E. coli and 3 people to die. The study found that wild boars brought deadly bacteria to spinach fields in California, and the factory used them to produce 42,000 bags of ready-to-eat spinach, causing many people to get sick after eating them.
Although the United States is strong and the world is the boss, in its own home, it is still played by the invading super pigs.
According to statistics from the U.S. Department of Agriculture (USDA), the number of wild boars in the United States in 2018 was close to 6 million, causing about $1.5 billion in economic losses each year, most of which were crops.
In order to control the number of wild boars, scientists racked their brains to develop contraceptives and toxins for wild boars, but because the drug degradation rate is too slow, it may endanger other animals, and they have to give up before they can implement it.
If you can't use poison, you have to do it with brute force. In 2011, Texas, which was tortured by wild boars and burned by nameless fire, passed a law calling on people to shoot wild boars in helicopters. As soon as this order came out, the Texas cowboys went into battle together and set off an asymmetrical air-to-ground man-pig war, killing 500,000 pigs without losing a single person, looking like a great victory and achieving a decisive victory. However, for the super pig, all this is in vain, with an annual loss of 500,000, the mother pig plucks up her ass to produce several litters, a litter can reach more than 10, and soon can make up for the sacrificed pig teammates.
The same is true in other parts of the United States. Because wild boar meat is not delicious, there are too many germs, the cost of acquisition is also high, the kinetic energy of hunting wild boar is limited, it is difficult to increase on a large scale, and it is becoming more and more difficult to control. According to experts, tens of thousands, hundreds of thousands of wild boars are good to say, millions of them have been on the table, and sows are so capable of giving birth, it is probably too late to talk about control.
A 2016 study published in the journal of applied ecology showed that the number of wild boars in the United States has been growing year by year with no signs of slowing down. USDA researchers have found that if the current rate continues to grow, the entire territory of the United States may be "overwhelmed" by super pigs in the next 30-50 years, based on a study of pig populations between 1992 and 2012.
Why can't the Iron America, the Super Pig of Flowing Water, and the United States, which dominates the world, not be able to do a bunch of wild boars? If you had to think of a way to pk super pigs, what tips do you have to put them all ko?
See you in the comments section, friends!
reference:
escherichia coli o157:h7 in feral swine near spinach fields and cattle, central california coast
wikipedia：wild boar
animaldiversity：sus scrofa wild boar
ournal of applied ecology：interpreting and predicting the spread of invasive wild pigs
sciencenewsforstudents：can anything stop the big pig invasion?