The number of organisms exploded
If animals were like humans, they would have fertilized, hunted, and developed food sources in an excessive amount, all organisms would have disappeared from the earth a long time ago. Like humans, too many of them will accelerate their demise. However, most animals can control too much through some nature, limiting them to the guaranteed supply of food. Breath plays a role in controlling fertility in many animals.
For example, Midworm , this insect grows in mills and barns and reproduces very quickly. But once more than two rice worms are exceeded in a gram of flour, the female worm will quickly react and eat the newly born eggs themselves. The reason for this non-maternal behavior is that there is a chemical substance in the feces of the rice worm. The increase in the concentration of this substance will first induce the reproduction of female rice insects to reduce, and then increase the development time of larvae, and finally lead to the aforementioned phenomenon of self-eating their eggs.
1859, Thomas Austin exiled 24 rabbits in Australia, and the number of rabbits reached 2.4 million during the six years. However, this is just the beginning of many disasters in rabbits, which quickly spread across the country, turning a lot of farmland into wasteland. They occupied every center and drove local animals to remote centers. In the end, they cannot prevent the suffering of hunger they create. When they were on the verge of demise, they changed their fertility habits, as if they realized that under such unfavorable conditions, it was difficult for their young to survive, so the male rabbits restrained themselves from getting close to the female rabbits during the dry season. If female rabbits become pregnant during the dry season, they will have miscarriages in the hot and dry weather in the future. When the first heavy rain falls, it means that the dry season is over and the rabbit will immediately resume its childbirth.
20 In the early 20th century, African people hunting big animals were surprised to find that after hunting elephants for several consecutive years, the number of elephants still did not decrease, just as some fish consumed many eggs for big fish to prey, elephants always insisted on the stability of the number. If the number of images reaches the risk level, they will separate the region.
So people have repeatedly seen elephants attacking areas that are unprepared for them. Here the trees are quickly pushed down or uprooted, the grassland is severely damaged, and water supply is lacking. At this time, the elephants will also take measures to limit their number. For them, fertility control is a prohibition, and the pregnancy distance of the mother elephant will increase by 2 to 3 times. Animals can use various methods to investigate their quantity and keep their quantity within the scope of guaranteed food supply. Some animals are able to pass through sounds. When frogs roar at night, cicadas chirping, birds chirping, and fish spawning eggs reach a certain intensity, you can know what level of reproduction status of these animals has reached. Some animals have been visually understood, such as ducks flapping their wings at dawn, swarms of hogworms dancing, and tropical moths glowing all reflect their number. Drug fly , rats, and the aforementioned rice insects can all reduce their fertility speed.
These are examples of animals avoiding excessive numbers of themselves, and many animals use other self-conditioning control methods. But what happens to animals without such control? Like lemming and locust , their self-conditioning systems have no effect, and they lack corresponding systems to control when they reach a certain level of birth. Many animals have exceeded the limits of the rules, so their social activities have begun to be synthesized, fighting between groups, no one takes care of the cubs, polygamy and adultery replace monogamy, thus prompting the whole society to regress and the mortality rate to rise. Only when the number stabilizes to a reasonable density will the social order return to normal. As humans have discovered, over-congestion and destruction are only one step away in practice.
Stone age, people from 30,000 years ago lived together in the form of clans, and clans were separated from each other. Each group consisted of about 25 people, and at that time there were only more than 500 people in England. Scientists estimate that the world's population is about 3.34 million, and Los Angeles is still small today.In history, the population reached 1 billion by 1830. It took about 100 years to reach 2 billion, and it took only 30 years to reach 3 billion people, 4 billion people for 14 years, and 5 billion people for 12 years. It is estimated that the world's population will reach 7 billion by 2010.
Now the world population increases by 260,000 people every day, equivalent to the population of Las Vegas, Nevada. The increase of 1.82 million people per week, equivalent to the population of West Virginia. Compared with other animals, human women do not have many children and have about 5 lifelong children. Ordinary toads lay more than 7,000 eggs each time, grass carp lay more than 500,000 eggs each time, and crabs lay 11,000 eggs each year in 15 years, which also led to a tragic ending. Their self-conditioning ability in quantity control also has a tragic side.
Because there are many animals on our planet exposed to humans without any defense and are harmed by them. When hunting, expanding and developing agriculture, or the elimination of authentic animals, the number of animals that have formed has dropped below the risk limit, disasters will suddenly come to the few remaining animals. Later, the desire to survive and reproduce certain animals has not been fulfilled, and some breeds of animals are willing to die on their own. This has been seen from the pigeon for many years, and the Geroposian tortoises that people care about also reflect this problem.
disappears on the ball, and it disappears forever. Few animal populations disappear alone, and their demise will affect other animals in the food chain, thus causing a chain reaction of animal extinction. In 1903, people put a few rabbits on the coral island in Leishan. Because they have no natural enemies and are rich in food, rabbits like to live in this tropical paradise and reproduce very quickly. In just 10 years, their number was out of control, resulting in the edible plants on the island.
People repeatedly wanted to reduce their number, but they did not win. Strange, the plants slowly die, the surface of the land is blown away by the wind, and the three unique birds on the island are also extinct. In less than 25 years in 1927, Leishan Island became a barren, narrow and barren beach, and the rabbits on the island starved to death. When humans accused these rabbits of not being able to adapt to the environment and destroy the entire ecosystem on the island, we also hope to see ourselves. As long as the human population cannot maintain stability, as long as we continue to cut down forests, corrode soil, pollute land, sky, rivers, and exhaust resources and wealth, our planet will not be able to nourish animals and plants, of course, including us humans.
1994 revealed a thoroughly considered report on the earth's acceptance ability, saying that the maximum number of people on earth who can last for human beings to maintain the level of life and death in the middle class in industrialized countries is 2 billion. This is 1/3 of the world's current population. Therefore, it is necessary to double the number of existing population in the next five generations. In practice, we don’t have to experience hunger, plague, or major disasters caused by war to reduce our population.
Within 100 years, as long as each of our families insists on 1.5 children, the population can be reduced to 2 billion. Many choices are hard to imagine, but it is important that we need to act now after thinking about this processing plan.
In history, the population reached 1 billion by 1830. It took about 100 years to reach 2 billion, and it took only 30 years to reach 3 billion people, 4 billion people for 14 years, and 5 billion people for 12 years. It is estimated that the world's population will reach 7 billion by 2010.Now the world population increases by 260,000 people every day, equivalent to the population of Las Vegas, Nevada. The increase of 1.82 million people per week, equivalent to the population of West Virginia. Compared with other animals, human women do not have many children and have about 5 lifelong children. Ordinary toads lay more than 7,000 eggs each time, grass carp lay more than 500,000 eggs each time, and crabs lay 11,000 eggs each year in 15 years, which also led to a tragic ending. Their self-conditioning ability in quantity control also has a tragic side.
Because there are many animals on our planet exposed to humans without any defense and are harmed by them. When hunting, expanding and developing agriculture, or the elimination of authentic animals, the number of animals that have formed has dropped below the risk limit, disasters will suddenly come to the few remaining animals. Later, the desire to survive and reproduce certain animals has not been fulfilled, and some breeds of animals are willing to die on their own. This has been seen from the pigeon for many years, and the Geroposian tortoises that people care about also reflect this problem.
disappears on the ball, and it disappears forever. Few animal populations disappear alone, and their demise will affect other animals in the food chain, thus causing a chain reaction of animal extinction. In 1903, people put a few rabbits on the coral island in Leishan. Because they have no natural enemies and are rich in food, rabbits like to live in this tropical paradise and reproduce very quickly. In just 10 years, their number was out of control, resulting in the edible plants on the island.
People repeatedly wanted to reduce their number, but they did not win. Strange, the plants slowly die, the surface of the land is blown away by the wind, and the three unique birds on the island are also extinct. In less than 25 years in 1927, Leishan Island became a barren, narrow and barren beach, and the rabbits on the island starved to death. When humans accused these rabbits of not being able to adapt to the environment and destroy the entire ecosystem on the island, we also hope to see ourselves. As long as the human population cannot maintain stability, as long as we continue to cut down forests, corrode soil, pollute land, sky, rivers, and exhaust resources and wealth, our planet will not be able to nourish animals and plants, of course, including us humans.
1994 revealed a thoroughly considered report on the earth's acceptance ability, saying that the maximum number of people on earth who can last for human beings to maintain the level of life and death in the middle class in industrialized countries is 2 billion. This is 1/3 of the world's current population. Therefore, it is necessary to double the number of existing population in the next five generations. In practice, we don’t have to experience hunger, plague, or major disasters caused by war to reduce our population.
Within 100 years, as long as each of our families insists on 1.5 children, the population can be reduced to 2 billion. Many choices are hard to imagine, but it is important that we need to act now after thinking about this processing plan.
