"Little white rabbit, so white, with two ears standing up" We have always thought of rabbits as cute animals. But in the eyes of Australians, rabbits are particularly annoying animals. Because there are so many rabbits in Australia that Australians are very scared of them. There were originally no rabbits living on the Australian mainland, so where did these rabbits, which are so rampant, come from? In 1859, an English farmer named Thomas Austin brought in some rabbits from Europe to raise. Who would have thought that this raising would cause endless disasters. Because Australia has large areas of grassland, the lush grass provides ample food for rabbits. Plus, there are no natural enemies of rabbits, such as foxes and wolves, in Australia, so the rabbits are having a great time. In addition, the grassland soil is loose, which is very conducive to rabbits digging holes and building nests. In such an almost carefree environment, what do the rabbits do after they are full? Of course, it is to start a crazy breeding campaign. We know that rabbits have a very strong reproductive capacity. The ancient mathematician Fibonacci was inspired by this and proposed the famous "rabbit sequence". According to the "rabbit sequence" principle, a pair of male and female rabbits can produce 144 pairs of offspring in one year. It is conceivable how strong the reproductive capacity of rabbits is. Well, although there are more rabbits, it shouldn’t be a big problem. After all, Australians do eat rabbits, and it just happens that there are a few more dishes on the table. However, the Australians found out that they were wrong because rabbits have such a strong reproductive capacity. The rabbits Australians eat are just a drop in the bucket of the entire rabbit population. By the end of the 19th century, in just a hundred years, the number of rabbits reached 10 billion, which is indeed a bit terrifying. The explosive increase in the number of rabbits not only dug holes everywhere, but also destroyed the balance of the grassland. They also ate grass everywhere, which was a scene similar to a locust plague. This led to a reduction in the amount of grass on the Australian continent and indirectly affected the development of animal husbandry. Just think about it, if all the grass is eaten by rabbits, herbivores like cows and sheep will have nothing to eat. This cannot go on any longer, the Australian government can no longer sit still. In order to deal with rabbits, Australia has to introduce the rabbit's natural enemy - the fox. But unexpectedly, after arriving in Australia, the foxes were too lazy to catch rabbits. Because rabbits are very cunning and run fast, it is actually very tiring for a fox to catch a rabbit. And the fox found that there were piles of sheep and silly kangaroos in Australia. When they saw how easy it was to catch rabbits, the foxes introduced to Australia stopped catching rabbits and instead focused on catching sheep and kangaroos. Well, the Australian government has one more task: to eliminate foxes... Since foxes weren't enough, the Australian government came up with a new solution: building a large number of barbed wire fences on the grasslands to prevent the spread of rabbits. However, the progress of this project obviously could not keep up with the migration speed of the rabbits, and the rabbits could dig holes and pass under the wire mesh. It was impossible to stop the rabbits, but many kangaroos were stopped. The Australian government had no choice but to use biological weapons - introducing the myxoma virus. This virus will kill rabbits once they are infected. The Australian government spreads this virus through mosquitoes. Of course, the virus is harmless to humans and other animals. It has to be said that the effect of biological weapons is quite good. Within a few years, the number of rabbits in Australia has dropped by 90%. However, although the virus can kill 99% of rabbits, there will always be rabbits that produce antibodies and survive. So the surviving rabbits began to reproduce in large numbers again, and their numbers gradually recovered. For this reason, the Australian government had to develop a new virus. However, even if the new virus was introduced, Australian wild rabbits would quickly produce antibodies, which caused the Australian government a headache. There are still at least 800 million wild rabbits in Australia, and the Australian government is still tirelessly looking for the secret to eradicate rabbits. The secret to killing rabbits? Sichuan people say: Give me ten servings of spicy rabbit heads, cold rabbit, and red oil-cooked rabbit cubes! |
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