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Australia has been tossed by 654.38 billion rabbits. Why not make spicy rabbit head?

Australia has been tossed by 654.38 billion rabbits. Why not make a spicy rabbit head? It is really hard for people who can't eat.

For Sichuanese who like to eat spicy rabbit heads, it is hard to imagine that there is another place where rabbits are rampant in the southern hemisphere.

One or three ecological disasters have occurred in Australia, all because of the fragile ecology here.

The first ecological disaster occurred in18th century. 1770, Australian colonists introduced yellow cattle to develop animal husbandry. There are many natural pastures in Australia, which are rich in groundwater and warm in climate. There are no snowstorms in winter and no beasts such as tigers, leopards and wolves, which are very suitable for the development of cattle industry. But after a period of time, it was found that the feces sent by cattle on the grassland every day was 654.38+0 billion kilograms. These large amounts of cow dung covered the pasture, which affected the photosynthesis of plants and led to the death of grassland pastures. At the same time, feces also breed a large number of mosquitoes and flies, which seriously affects environmental sanitation. In the 1920s, Australian scientists introduced dung beetles from China. After dung beetles were introduced to Australia, they used a lot of excrement as their own nursery and food, which perfectly solved the cow dung crisis.

The second ecological catastrophe was in19th century. 1840 A cactus Rosa roxburghii entered Australia as an ornamental plant, but it spread wildly in the wild. Pieces of cultivated land and pasture are occupied by Rosa roxburghii at an alarming rate. By 1925, Rosa roxburghii has occupied about 240,000 square kilometers of land, and people began to treat Rosa roxburghii with knives, car rolling and burning. The result is of no help. Finally, scientists found that a larva of Lepidoptera moth is the natural enemy of Rosa roxburghii. As soon as this bug meets Rosa roxburghii, it will enter the plant and be completely hollowed out for him to eat. Ten years later, the crisis of Rosa roxburghii was basically solved.

The third ecological disaster is the hare crisis since the 20th century. Compared with cow dung crisis and thorn pear crisis, Australia has nothing to do with rabbits. At the peak, the total number of rabbits reached more than 654.38+0 billion, equivalent to several hundred times of the total population of Australia. A large number of rabbits breed on the grassland, eat the grass that should be fed to cattle and sheep, dig holes everywhere, destroy the root system of the grass, cause large-scale degradation of the grass, and seriously threaten the development of animal husbandry.

Australia is a country where guns cannot stop. The government called on the people to kill rabbits and give them corresponding rewards. The population of rabbits is dozens of times that of humans, and their reproductive ability is abnormal. Even if all people in Australia are soldiers, they can't kill all the rabbits.

Humans can't beat rabbits, so we turned to foxes for help. Unexpectedly, foxes introduced to Australia are as cunning as cats. Whoever has fish to eat will catch mice! Instead of catching rabbits, foxes make it impossible for sheep to survive. Therefore, Australia has to catch foxes to protect sheep.

After all, rabbits are fate, and it is not good to push too hard. The Australian government began to follow the example of the US military in the Vietnam War, building barbed wire isolation zones everywhere and establishing "rabbit-free zones". As a result, the rabbit learned guerrilla warfare by himself, and he could infiltrate by digging a few holes. Australia's encirclement of rabbits failed again.

At the end of the 20th century, the emergence of transgenic technology brought good news to the rabbit crisis in Australia. Scientists began to use transgenic technology to study myxoma virus and release it to rabbits. If female rabbits are infected with this virus, they will produce antibodies against their eggs, which will destroy the eggs and prevent fertilization. This weakens the reproductive ability of rabbits and makes it much easier to manage them.

Then, friends in Sichuan want to ask, if we launch a "spicy rabbit head" activity, can we kill all 65.438 billion rabbits in Australia?

I can only say that it is a bit difficult.

How many rabbit heads can China eat every year? This figure was 500 million three years ago. Is it possible to reach 654.38+0 billion now? Even if you can eat so many rabbit heads a year, a rabbit head is only a few dollars. With the remaining rabbits, the purchase price of a rabbit can be 20? Can such a purchase price support a large number of rabbit hunting teams?

The answer is not enough. Even if Australian rabbits breed in large numbers, at most, it can only reduce the cost of local spicy rabbit heads.

An obvious example is that there was a bean worm flooding in our village one year. Many villagers heard that a catty of bean worms can be sold to 10 yuan, and rushed to their own fields to catch bean worms. Bean worms with index fingers are everywhere. As a result, my back ached at the end of the day and I found that I only earned twenty or thirty dollars. what are you going to do? The next day, I'm afraid only the bolder children will catch the bean caterpillar.

Let's not laugh at Australia. The situation of biological invasion in China is not optimistic at all. There are more than 620 alien invasive species in China, resulting in losses of more than 200 billion yuan. Among the world's 100 most threatened alien species published by IUCN, China has 5 1 species, which is one of the countries with the most serious biological invasion in the world. What you think is delicious, such as lobster (marbled shrimp), locust and other species, are actually quite rampant in many places in China. Incidentally, many Tik Tok people called for cooking scavenger fish to alleviate biological invasion, but no one really asked to eat it.

Biological invasion is a worldwide topic, and the emergence of transgenic technology can be regarded as the best weapon for mankind. It is not difficult to see from here that the so-called science and technology is the primary productive force, which is not only suitable for producing materials, but also suitable for protecting the environment.

The so-called saving species invasion by eating food is actually a ridiculous thinking, which shows that our science and engineering are not developed enough.