The story of man who violated the way of nature, the story of man who violated the way of nature and

At the beginning of the 20th century, there were about 4,000 wild deer in the Kaibab Forest in the Rocky Mountains of the western United States, and they were accompanied by packs of wolves, threatening the survival of the deer. For the sake of the tranquility of these deer, in 1906, the United States decided to carry out a wolf eradication operation, and by 1930 more than 6,000 wolves had been shot. The wolf is nowhere to be seen in the Kaiba Burlin district.

So the deer began to give birth there without any worries and "unplanned", and soon the number of deer grew to more than 100,000. Thriving deer eat all edible plants, eat up weeds, destroy forests, and reduce the number of other animals that feed on plants, leaving the herd suffering from hunger and disease. By 1942, the number of deer in the Kaibab Forest had dropped to 8,000, and the majority of them were sick and weak, and the once-thriving deer family was in sharp decline.

This backfires because the wolf has been exterminated. On the one hand, wolves prey on some deer, so that the total number of deer is controlled, so that they do not reproduce to the extent that they degrade vegetation; On the other hand, most of the deer preyed on by wolves are old, weak, sick and disabled, which helps the survival of the fittest and the succession of deer herds. On the other hand, the deer is often in a state of escape under the chase of wolves, which promotes the robust development of the deer. Since the wolf disappeared, the deer had no natural predators, the "lazy man" was weak, and the deer herd degenerated.

In order to save the evil consequences of wolf extermination, the United States formulated a plan to "lure wolves into the house" in the 70s of the last century. However, this plan was opposed by some people and was not implemented in time. With the increase in people's awareness of the environment, the "Bringing Wolves into the House" program was finally implemented in 1995.

The first wild wolves were released from Canada into the Rocky Mountains, and the forest was full of life.

The eagle is the world's longest-lived bird, reaching an age of 70 years, but at the age of 40, it faces a catastrophe. At this time, its gimmicks become long and curved; Its claws begin to age and are unable to capture prey effectively; Its feathers become thick and thick, making the wings heavier and heavier.

At this time, the eagle has only two choices: either wait for death, or go through a painful and long metamorphosis. In this torturous metamorphosis, it must fly hard to the top of the mountain, hit the rock with its gimmicks until it falls off completely, and then wait quietly for new stunts to grow.

Then it has to use the newly grown gimmicks to pull out the old toenails from its paws one by one, leaving a stain of blood. After the new toenail grows, it has to use the new toenail to pluck the feathers off its body one by one. After 5 months, the new feathers have grown, and the eagle can start flapping its wings again for the next 30 years.

Some people believe that the Himalayas should be blown open and the warm Indian Ocean current should be brought into the Tibetan Plateau to improve the local climate conditions. It seems that He Zuoxu suggested it.

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Lesson 9 in the second volume of the fourth grade of primary school.

1.In the United States, humans killed wolves to protect wild deer, and as a result, deer multiplied and then died in large numbers.

2.Once, a forest fire was caused by dead wood in the forest, and people cleared all the dead wood to prevent hidden dangers, and as a result, another insect pest broke out on a large scale.