How were animals on Earth born in the first place? Why don t extinct species regenerate?

Now, the earth's environment, on which we humans and animals depend, has been deteriorating more and more, and many wild animals.

are on the verge of extinction.

We also feel very sorry that scientists are also studying how the earth is producing a variety of animals, and they are also trying to understand how to regenerate extinct species, but it is not possible. So how did the animals on Earth first come into being? And why don't extinct species regenerate?

Next, let's take a look at these two questions!

First, a variety of environments have made the generation of animals The mechanism of the earth to breed organisms is very magical, at the beginning there were some macromolecular substances on the earth, and these macromolecular substances spontaneously formed a membrane structure on the surface, so there were single-celled organisms on the earth.

These single-celled organisms evolved and differentiated under the influence of their environment, eventually forming multicellular organisms. Then multicellular organisms evolved and differentiated, forming the animals, plants, and microorganisms we have today.

Second, we can no longer reach the previous environment The earliest extinct animal we know is the dinosaur, and many fossils of dinosaurs have been found, and dinosaurs were born in ancient times.

At that time, there were no human beings, and there were not many living things, just patches of forests and trees. Therefore, taking dinosaurs as an example, the earth's environment is changing all the time, and we currently have no way to return to the previous ecological environment, "natural selection, survival of the fittest", so nature cannot resurrect extinct animals.

3. Protecting wild animals, everyone is responsible now, the earth's environmental pollution is becoming more and more serious, and the ecosystem.

The balance is disrupted. The rate of extinction of species is accelerating, which means that the diversity of organisms is decreasing, which may eventually lead to the extinction of human beings, so we must start from ourselves to protect the ecological environment on which we depend, and at the same time protect the wild animals, which is everyone's unshirkable responsibility.

Animals on Earth were first born through mother's conception, and the reason why extinct species do not regenerate is because such species no longer have the ability to breed, so they will not appear again.

It can only be said that the environment at that time was more suitable for the survival of those creatures, so it appeared, and now with the development of the environment, it is no longer suitable for the existence of the original creatures.

Because the earth's environment was in a relatively ideal state at that time, a lot of primitive life was bred because their biological signs had been completely destroyed.

From a biological point of view, the birth of a new species is the formation of a population, then the formation of a category, and finally the formation of a species, which takes a long time in the middle, and cannot be observed by one or two generations. But this does not prevent us from verifying the correctness of the theory.

Just look at the dog, the dog is domesticated or cultivated by the wolf, and now it has formed countless defeated populations, Chow Chow Demu Erha, each of which can be inherited traits, and can also reproduce, it can be said that it has transitioned from the population to the category, and then the development of different dog breeds will produce reproductive isolation, which can be defined as a new species.

By the way, reproductive isolation is not a criterion for defining species, there is no reproductive isolation between ligers but they belong to two species). There are more new species in plants, but they are not so famous and unknown to the general public.

New species are born, but the time period since we have recorded them is too short, and there are always new mutations, such as many new bacteria, viruses, symbionts, and large populations are not enough to appear obvious new species due to time relations, and it takes a long time for the new species to stabilize.

It was concluded that in order to adapt to the environment, subspecies constantly appeared. After all, human beings have a very short understanding of the world, so quantitative changes have not yet caused qualitative changes. In fact, many new species are born, but the number of new births is very small and difficult to find.

In fact, there are really a lot of new species born, many of which are actually no different from the old species, but as long as there is reproductive isolation, it is called a new species, and now it is known that there are many, many new species cultivated by artificially, and then because of the current ecology, nature has also evolved a lot of new species, but the extinction of old species is easy for us to detect, and the emergence of natural new species has to wait for us to discover, so there are relatively few mentions, but definitely a lot.

In fact, every year, new species are found to replace the extinct old species, for example, the Amazon often discovers new species, nature will definitely solve its own problems, but humans should not be nosy. Stay optimistic.

The species on the earth fiber cover are all developed through continuous evolution and reproduction, and the evolution of each species takes hundreds or even thousands of years, and the current species have evolved from the previous cells.

Now the most convincing Li Fu is that all life is born from the ocean, from the earliest single cell, and gradually multiplies to the current scale of the sedan friend, which makes people sigh at the miracle of life.

Species on Earth were brought about by meteorites from outside the earth, and they have evolved to become what they are now.

It is impossible to count how many species there are on the earth, from the sky to the earth, there are countless species living in the earth, and even eight thousand meters below the deep sea there are strange creatures, so we can only give an estimate of the total number of species on the earth.

Taxonomists are to classify the newly discovered species into the kingdom, phylum, class, order, family, genus, and species corresponding to the following, so as to facilitate the study of biologists, according to the speculation of scientists, there are about 7.7 million species of animals and plants on the earth, and those microorganisms are not included in the above statistics, because they have more species.

So many species really sigh at the wonder of the earth, how can such a colorful world evolve. There are species extinctions every day, and they may be accompanied by the birth of new species, which we cannot monitor because we still can't figure out how many species there are, and those organisms that exist underground and in the ocean are places that are difficult for humans to investigate.

Why do we rarely hear of new species being born? Because even if we find a so-called new species, taxonomists just classify it normally, and don't know when it appeared, which needs to be studied.

Where do the species on Earth come from? This involves the question of the origin of life on the earth, which can be summarized in a few words, life originated from the earth, and all things have the same origin.

From unicellular to multicellular, due to the diversity of genetic material and the diversity of the ecological environment, the types of organisms have also shown diversity, and the number of species has gradually increased, from ancient times to the present, 99% of the species that have lived on the earth have become extinct because they do not adapt to the environment.

In fact, there are really many new species born, many of which are actually no different from the old species, but as long as there is reproductive isolation, they are called new species, and there are many new species that are known to be artificially cultivated.

And then because of the current ecology, nature has also evolved a lot of new species, but the extinction of old species is easy for us to detect, and the emergence of new natural species has to wait for us to discover, so there are fewer mentions, but absolutely.

The existing species are basically the same ancestor, that is, the first reptiles that crawled out of the deep sea at that time.

Basically, they all evolved from fish, because in ancient times, the earth only had life in the ocean, and then it gradually ran to the land.

All existing organisms have evolved slowly over millions of years, which is a long evolutionary process.

These species that exist today have evolved over tens of millions of years, so some species will become extinct if they cannot adapt to the current environment.

Most of the existing species are mutated from previous species, or new species are born suddenly.

Nature is due to the evolution of species, and in the long course of time, the direction of development is different, the genes have also changed, and new species have naturally formed.

Species include many species, visible plants and animals, invisible bacteria or viruses, these are all species. Because of the abuse of natural resources by human beings, many species have become extinct, but there are also many species that have been born, not to mention the rest, let's talk about AIDS, Ebola, the new coronavirus, etc., these are all new species, how can it be said that there are no new species extinct?

If we really analyze this matter, the species on the earth known to mankind are less than 10% of the total number of species on the earth, and a large part of the extinct species are species known to man, and there are countless species that have become extinct and born in areas unknown to mankind. So, don't talk about extinction and birth. Take marine life as an example, there are currently about 210,000 known marine species detected and recorded by humans, but according to conservative estimates, the number of biological species in the ocean starts at least 2 million.

With the continuous progress of human science and technology, more and more new species have been explored on the earth, but limited by human science and technology, it is difficult for human beings to judge whether these new species discovered later are new or have existed a long time ago. Although many people talk about science and science, the history of science is only a few hundred years, so how can we be sure that science must be correct. For example, viruses and bacteria, they have not stopped evolving since they were discovered, and the abuse of antibiotics by humans has also led to the emergence of resistance to these bacteria and viruses, which is actually an evolution, although it originated from the old species, but it is completely different from the old species.

Taking China as an example, as early as 2013, a giant stick insect was found in China, with a body length of more than 60cm, and it is said to have broken the world record. Although it is not common, it is a type of old species, and the newly discovered giant stick insect is very similar to the small stick insect, but because of the huge change in its size, it is actually a new species.

Although there are relatively few new species discovered by humans in recent years, compared with the unknown species on the earth, in fact, the progress of human exploration of the earth is less than 10%, and it is no exaggeration to say that all species on the earth are changing imperceptibly, some species are extinct, and some species are born, including human beings themselves. The origin of species is widely recognized as "Darwinian evolution", but because of the lack of the most important link between humans and primates, there are also many people who question it, so no one can give a definite answer to where the species on Earth came from.

Species on Earth have evolved over thousands of years, starting with single cells, and then evolving through the development of temperature, sunlight, air, and water.

Many species on Earth have evolved over time, and they will change with the times.

These species on the earth evolved slowly, mainly according to the environment on the earth, as well as some substances suitable for survival on the earth, and then slowly evolved.

It is constantly evolving, and species are constantly changing in different directions, constantly reproducing, and it takes many years to form new species.

Species on Earth have evolved from a variety of organisms. It's really amazing.

Nature is because of the evolution of animals, each animal continues to evolve with different changes in the environment, those who adapt survive, and those who do not can only face extinction.

Species on Earth have evolved over thousands of years and are not born in an instant.

According to Darwin's "Theory of Evolution", the species that exist in the world are constantly evolving and evolving, and the species on the earth are the result of the mutual run-in of the substances of nature!