The United States is a sparsely populated country, and unlike the mainland, American farmers are really rich people, and if American farmers walk on the street, they will be looked at with envy. However, natural vegetation will always attract a number of invasive alien species, of which wild boars and pythons are a headache for Americans for years.
Wild boars are protected animals in China, but in the United States they have become a demonic species that frightens farmers. Wild boars have tenacious vitality and a large amount of food devouring system, an adult wild boar can eat more than 10 tons of plants a year. An adult female wild boar can produce 20-50 piglets a year, and the wild boar's strong viability makes the survival rate as high as 90%.
Exponential crazy growth of wild boar in the United States flooded, American experts have done a number of simulation statistics, the number of wild boars on the farm alone is more than 6 million, and the actual number may reach 10 million. Assuming 5 million adult wild boars, the United States loses at least more than 50 million tons of vegetation each year and direct economic losses of at least hundreds of millions of dollars.
Even more worrying is the fact that wild boars have few natural predators, and millions of wild boars are expanding exponentially. To this end, the U.S. government has funded a clearance plan to eliminate wild boars, and some people have proposed to use traps, but the wild boars with great testing strength have almost ignored the existence of traps. The most direct and useful method is electric shock and shooting, but the wild boar is extremely aggressive, an adult wild boar can easily bite the bones of people, and many American hunters have suffered severe trauma while killing wild boars.
Americans prefer high-protein meats, such as beef. For animals with high body fat rates like wild boars, coupled with a very heavy fishy smell, Americans regard it as dregs, mainly because the United States does not have continental cooking and barbecue technology. Up to now, the flood of wild boars is still an important problem to be solved in the United States.
Pythons are another invasive alien species that is a headache in the United States, of which the Burmese python is the main member. Burmese pythons are native to Southeast Asia and, like wild boars, have few natural predators, and can grow up to 7 meters and weigh up to 90 kilograms in mature stages. An adult Burmese python can easily swallow an adult, and the flood of pythons is more deadly than wild boar.
The aquaculture industry in the United States has suffered huge losses in recent years, and many farmers lament that the python is an invincible creature. Female Burmese pythons can lay at least 60 snake eggs a year, and in the case of Burmese pythons, their growth rate is staggering. It only takes 1-1.5 years from birth to adulthood, and the adult Burmese python is at least 2 meters above. Small adult Burmese pythons prey on cats, rabbits, birds, etc., while large Burmese pythons can prey on 99% of large organisms that can move.
To eliminate the chilling Burmese python, the United States has instituted an annual purge. Professional python killers were born, their salaries are relatively high, ordinary professional python killers have an annual income of more than 100,000 US dollars, and skilled python killers can even reach 200,000 US dollars, and in the United States, an ordinary wage earner who can support a family only earns 50,000 US dollars a year.
Wealth and wealth in the risk of seeking to correct the career of professional python hunters, and relying on people's hunting alone is far from catching up with the breeding rate of Burmese pythons According to preliminary estimates, there are at least 100,000 Burmese pythons in the United States. The United States was once considering using biochemical techniques (e.g., bacteria, viruses) to eliminate species such as wild boar and Burmese python, but the question of whether it would cause greater species invasion and mutation has remained unresolved.