What organisms have evolved significantly as a result of the human threat?

Monkeys that often haunt human living areas are also very adaptable, and there was a CCTV documentary that said that monkeys like to steal drinks that people put on outdoor tables. The researchers placed two identical drinks on the table, one in a prominent position, and the other with a shield between the cup and the person's line of sight, and the monkeys cleverly chose to use the shield to hide themselves so that they could drink safely. I've decided that it's not because of the threat of humans, they might even think it's better to be with humans than to be around, it's just plenty of food.

Let's take the most common example. When I was a child, in the early 80s. Sparrows, which are common in the city, mostly have long beaks.

Now, there are almost no sparrows with long beaks in the city, and they are all as round as chickens. Because at that time, people were not rich in material resources, and they ate very economically, and sparrows also needed to grow beaks to catch insects to eat. Today's sparrows are enough to eat as long as they are picked up on the ground, and the trees are also medicated, so there are no insects to eat, but the long beak has become a burden, and it has degenerated.

This change is very short, only a few decades, and if you look closely, you will find a lot. In fact, animals have a strong ability to adapt to environmental changes, especially those that are small in size and reproduce quickly.

The cicadas have changed significantly, and the cicadas I saw when I was a child were much larger than the current cicadas and their body sizes were different.

Before the great industrial development of Britain, the number of black moths was far less than the number of gray moths, because the trunks were gray, and black moths were more likely to be preyed on by natural predators When the industrial development was great, the trunks were stained with a layer of soot, and the number of gray moths and black moths was reversed!

For example, geckos, you can still see geckos in the past, but can you still see geckos all these years? Less and less, until extinction is no longer visible.

Raccoons, since the expansion of human settlements, raccoons that adapt to humans have become more nourishing.

In modern times, there are many creatures that have evolved a lot because of the threat of humans.

I think that the changes in the biological chain are indeed largely caused by the threat and destruction of human beings. For example, loaches are rarely seen in rice fields nowadays.

In the 21st century, if you still expect to use cats to catch mice, you may be disappointed, in fact, most breeds of cats are civilized in the form of pets, few are loved for their mouse-catching skills, people only need it to be cute, not its wildness - and even dissatisfied with their bird-catching characteristics.

In fact, like many animals in Africa, there is evolution, and obvious changes can be seen.

I feel that the evolution of living things is not just due to human threats, but also because there are many other factors.

At an intersection near a university in Japan, flocks of crows are often waiting for a red light to arrive. After many observations, Japanese animal researchers were surprised to find that whenever the red light came on, the crow flew to the ground and quickly put the walnut under the tire of a car parked on the road. When the traffic light turns green, the car starts to crush the walnuts, and the crows hurry to the ground again to have a good meal.

It is certainly not so easy for crows in nature to eat walnuts ......

In the field, weed rice is a perfect score of "lurker". The "ghost" of ghost rice cannot be prevented. First of all, it will "mimime".

From the seedling stage, weed rice is jointed and long-leaf together with cultivated rice, and it is extremely difficult to distinguish them in appearance. It is not until after the panicle is set that the slightly pigmented husk is removed, revealing brown rice grains, that it is weedy rice. At this point, it is too late to recognize.

Second, it will be dormant. Fan Longjiang described to reporters the miraculous dormancy mechanism of weed rice: when rice grows, it also grows; Rice doesn't grow, it doesn't grow; If a plot of land is replanted with corn, the seeds lie dormant in the soil; After two years, the rice is planted with irrigation, and the weedy rice will be "resurrected".

According to reports, weed rice seeds can be dormant for up to 10 years. They are completely here for the cultivation of rice. Again, it will fall into the grain.

In order to facilitate human harvesting, conventional cultivated rice still hangs on the branches after maturity and does not fall into the soil. Weed rice is not so dry, it quickly falls after maturity, "dives" into the soil, and is well hidden. ”

The biological threat of war is the biological threat of warNatural disastersBiological threats raised,EmergenciesBiological threats raised,

A variety of pathogens attack microorganisms.

Genetically modified organisms, invasion of alien organisms, and bioterrorism incidents are all sources of biological threats, while air pollution emitted from factory chimneys is not a source of biological threats.

Magicians come from European and American folklore, science fiction movies, and more famous movies such as The Lord of the Rings, Harry Potter.

Wait. From literature or film, we can learn that magicians, as the name suggests, achieve certain ends through magic.

Physical attacks usually refer to the damage dealt by close-range attacks. Injuries caused by physical contact are called physical assaults. This attack was mainly used by soldiers and assassins, and the means of output was force.

The reasons that threaten the survival of organisms include habitat destruction, poaching, invasion of alien species, environmental pollution, other reasons, etc., organisms must adapt to the environment, and obtain food and water from the environment in order to survive, if the habitat environment is destroyed, organisms will not be able to survive if they cannot obtain food, and organisms must adapt to the environment in order to survive.

Biological threats** include bacteria, viruses, insects, plants, etc.

For humans, biological threats** include bacteria, viruses, insects, plants, birds, animals, and humans. These** may cause a variety of health effects, including infectious diseases, toxicity, allergic reactions, and carcinogenicity. Biological threats can come from nature or from human activities, such as pollution and pesticide use.

In addition, poor areas with a lack of sanitation and medical facilities may also present other biological threats, such as mosquito-borne viruses, parasites and their slippery pathogens.

For human beings, the dismantling of biological threats comes from wars and natural disasters.

and emergencies, etc. Factors such as wars, natural disasters and emergencies usually refer to the biological threat that causes a large number of pathogenic microorganisms to multiply in large numbers and suddenly, bringing concentrated harm to human society and health.

For humans, the biological threat is **.

Pathogenic microorganisms are microorganisms that can invade the human body and cause infections or even infectious diseases. Bacteria and viruses are the most harmful pathogens.

Pathogenic microorganisms include prions.

Fungi, bacteria, spirochetes, mycoplasma.

Rickettsia, chlamydia, viruses, etc. Or so.

It is true that the development of human beings has affected the survival of too many species, and the extinction of species has actually affected human beingsThis is because the extinction of species can lead to problems in the entire ecological chain, and at the same time trigger a series of chain reactions, which leads to various problems in human society and affects the survival of human beings.

It is important to know that each species has its own place in the ecological chain, so when a species becomes extinct, the ecological chain will also have problems. As a simple example, if an insect becomes extinct on the planet, then the birds that feed on that insect are likely to go extinct as well, leading to the extinction of another organism that feeds on that bird. Even if the bird can feed on other insects, the extinction of one insect means that the bird is missing one less food**, which is likely to reduce their population, which in turn will lead to a decrease in the number of other organisms that feed on the bird.

It can be said thatThe ecological chain is linked, but if one species is affected, other species will also be affected.

Once the number of affected species in the ecological chain exceeds the limit of what the ecological chain can bear, then the ecological chain of the entire planet is likely to have huge problems, such as the death of a large number of animals and plants, and the environment becoming harsh. Once this happens, humans will naturally be affected as well. As a simple example, if all life in the ocean is extinct, then human beings will lose an important meat**, and if the extinction of plants and animals reaches a certain amount, the food they need will probably be reduced, which will cause all kinds of social problems and chaos.

Therefore, the extinction of species will actually affect human beings, and people don't feel much about the extinction of species today because the extinction of species has not yet reached a certain levelIf the number of species extinction reaches a certain level, the living environment of human beings will also face serious challenges.

In general, species extinction will affect humans.

Definitely, because everything on Earth has a food chain, and any one thing that disappears will have an impact on all living things on Earth.

Yes, we live on the same earth, the ecological environment is affected by all aspects, we must take care of the environment and protect animals.

Because the extinction of species may have some impact on the ecological balance, which is more important to us.

In fact, it has to be said that more than 1 million species in the world are in danger of extinction due to human activities, which really arouses people's attention, so this is because the ecological environment should not be protected, and wild species should be protectedIt is undeniable that species extinction will indeed have a series of impacts, and it will also lead to the destruction of the ** ecology, so it will also cause potential safety hazards to human beings, so it is precisely because of this that the problem can be viewed from the following aspects. <>

1. There are 1 million species in the world that are threatened with extinction due to human activities, so it is precisely because of this that people pay more attention to the protection of the ecological environment, the protection of endangered species, and the protection of our common home. One million species in the world are threatened with extinction due to human activities, and such a huge number of data is even more shocking, and it is necessary for us to establish a correct awareness of environmental protection, protect the ecological balance, and protect our common human home when protecting Big Tree Street. <>

2. For the extinction of species, it will inevitably lead to indirect damage to the original ecology, and it is not conducive to ecological balance, and human beings will also be affected by this. In fact, it has to be said that the extinction of species will inevitably have a series of impacts, and similar to the butterfly effect will also indirectly affect human society, so it is precisely because of this that the benign development of species should be protected, and if any creature lacks the restraint of natural enemies, it will inevitably lead to the flood of species and cause a violent impact on human society, so it is precisely because of this it is necessary to realize the importance of species and effectively protect the ecological balance. <>

3. The extinction of species will inevitably lead to the impact of human society, so for us, everything should establish a sense of safety precautions, protect the natural environment, and effectively protect endangered species. It is true that after the extinction of species, it will inevitably cause a devastating blow to human society, so at any time, human beings should establish a sense of ecological security protection, take the initiative to protect the ecological balance, protect endangered species, and effectively protect our nature, and this is also to protect human beings themselves.

In fact, it has to be said that there are more than 100 people in the world who are being exterminated tragically due to human activities, which is really shocking, and for species extinctionIt will inevitably affect human society, so it is precisely because of this that in order to avoid a similar butterfly effect, it is necessary to pay attention to environmental protection, protect the natural ecological balance, and effectively protect endangered species.

One million are threatened with extinction due to human activities. Looking at China again, "the first wild giant panda appeared in many places in Longnan" and "the crested ibis appeared in the Jingwei wetland" ......In recent years, the quality of China's ecological environment has continued to improve, and many rare animals that have been hidden for a long time have frequently appeared. On Earth Day, on Earth Day, let's "cherish the earth and live in harmony with nature".

If the biological chain is destroyed, people will also become extinct. When species become extinct, the biological chain will be out of balance, and the extinction of other species will be accelerated; In addition, when species become extinct, humans will lack food**, and humans will soon become extinct.

It will lead to a decrease in the diversity of biological species, and will also lead to a relatively homogeneous natural environment, which will lead to a more vulnerable environment to damage over time.

If the species becomes extinct, it will destroy the food chain, it will destroy the entire ecosystem, it will affect the entire ecological environment, and then threaten the survival of the entire human race.

It will break a lot of balances, it will become chaotic, people will be affected, everything will be disrupted, a lot of creatures will die.

I feel that the extinction of species will lead to the loss of biological diversity, and the extinction of any species will have an impact on the ecosystem, and even on the survival of human beings, so it is our duty to protect endangered animals.

The extinction of species will inevitably have a series of impacts, and similar to the butterfly effect, it will also indirectly affect human society, so it is precisely because of this that the benign development of species should be protected.