Why are there no amphibians in nature? Will amphibians evolve in the future?

Amphibians have particularly high requirements for animal lungs, but water and high altitude are relatively extreme cases, and it is difficult for the lungs to have such a large span, so it is almost impossible to become a tribious.

Because it takes very extreme conditions for species to evolve into amphibians, if the ecological environment is extremely bad in the future, it may appear, but it is better not to appear, and it means that it is about to be unsuitable for human habitation.

Animals generally fly in the sky, swim in the water, run on the ground, under normal circumstances, amphibians can survive well, if the future living environment changes, there may also be amphibians, evolution is generally for better survival.

Natural selection tells us that animals are constantly adapting to their environment in order to survive. If the environment allows it to survive, it will not evolve into an amphibian.

There are no amphibians in nature because amphibians are enough to adapt to the natural environment and social development. It is possible that the amphibian will evolve in the future, because there are more than enough possibilities in the future.

The origin of amphibians is due to the constant changes in the earth's crust, and their living habits are changed; At first, they were in the water environment, but due to the decline of the crustal change level, they had to be on land, so they had the habit of living on the ground, and their physiology had to evolve due to changes in the environment, thus evolving into amphibians.

With the change of time, amphibians have evolved in nature, and have developed into amphibians based on the principle of survival of the fittest, and can survive underwater and on land, because the earth has evolved in the past hundreds of thousands or even millions of years, the oxygen content and geology on the earth have been constantly changing.

Because with the change of the living environment, animals need to survive in the water and also need to survive on land, so amphibians have evolved aquatic creatures, and they have evolved by crawling to land to survive.

Amphibians are not species that can live both in and out of water. By this standard, most birds are amphibians, capable of diving to catch fish, walking on land, and flying in the air.

Amphibians are the same creatures that have different ways of surviving in juveniles and adults and have different body structures. According to this criterion, amphibians should belong: larvae live in water and breathe with gills; Living on land as an adult, breathing with your lungs; After old age, live in the sky and breathe in other ways.

Currently, the main reason why there are no amphibians is that there are currently no organisms that are able to live forever in the sky, as well as use other means of breathing as their primary means of breathing. Although some animals on the earth can go to the sky and enter water, they still can't live in the air, so there are only amphibians and no amphibians. Personally, I think it has something to do with dimensions, there are only land and water animals on the earth, and there are only amphibians, maybe we still have animals that we haven't found.

In fact, many birds belong to the trifauna, such as mallards, swans, many sea birds...I guess it's an amphibian! Terrestrial animals just swim in the air, which is not fundamentally different from flying, so there are only amphibians, not amphibians.

It means to live, to live. Amphibian larvae live in water, and adults can live on land. Insects and birds, bats can only fly in the air.

Then it is probably bacteria and viruses that are likely to live in the air. However, they belong to microorganisms, taxonomically do not belong to animals, and it is unlikely that they can live both in water and on land, so they cannot be considered amphibians.

The so-called amphibian refers to the larvae of frogs and toads, that is, tadpoles, which live in water and adults live on land, which is the real definition of amphibians, and only if these two conditions are met, can they be called amphibians. Therefore, unless there are animal larvae that survive in the water, semi-adults on land, and adults fly in the air, they can be called so-called amphibians.

It's because there are animals that evolved into amphibians. There are many species on Earth that have evolved over time, and most of them have evolved to adapt to their environment.

I don't know this answer very well, I remember a long time ago I read the Approaching Science column that water has existed since the beginning of the world, and the land was slowly formed by fission, so in order to survive, organisms can only evolve and adapt to water and land to live longer, so amphibians appeared, and it was the environment that created their living habits.

Amphibians evolved from aquatic organisms because they can live both on land and in water, so they are called amphibians.

The main reason is that this kind of animal has special organs that can adapt to two living environments, and it should also be evolved by natural selection.

1. There are no amphibians in the world. Because amphibians do not conform to the laws of evolution, from the perspective of species evolution, amphibians belong to a species with incomplete evolution, they belong to the intermediate stage from marine animals to terrestrial animals, and they cannot cross the hurdle of terrestrial animals and directly evolve wings, because the evolution of species has always been based on the premise of survival and reproduction, and wings are useless for amphibians, so there can be no amphibians.

2. Life originated from the ocean, so the earliest animals were aquatic animals, but with the continuous changes of the earth's environment, when the plants on land began to flourish, some aquatic animals will inevitably move from the sea to the land, because there is more food on the land, which can make these animals live, so some animals begin to go to the land.

3. However, in the process of turning marine animals into land animals, there must be a long transition period, during which animals have both marine and terrestrial abilities, so the early amphibians belong to the transitional species, but with more and more animals on land, it is difficult for those later amphibians to gain a foothold on land, in other words, today's amphibians have missed the best opportunity for them to become land animals.

If you compare the earth to a cauldron, it's a hodgepodge. Because there are so many species on the earth, by the beginning of the 21st century, there are millions of species on the earth according to incomplete statistics, in order to better distinguish the species of organisms, and in order to have a better understanding of them, human beings have classified animals.

These include vertebrates and invertebrates, and among vertebrates, there is a detailed classification, reptiles, amphibians, mammals, and so on. One of the most special species is amphibians, which can live both in water and on land. Most organisms can only be in the water or on land, choose one of the two, but amphibians can do, why haven't amphibians evolved on Earth?

Can you survive in three environments: land, water and air?

First of all, what exactly is an amphibian? Amphibians refer to living in the water when they are young, and can survive on land after adulthood, and amphibians do not mean that they can survive on land, sea and air, among amphibians and terrestrial vertebrates, amphibians are very low, it can be said that it is a process of evolution from marine organisms to terrestrial organisms, and it is a transitional stage of evolution, retaining the most primitive mode of production, and higher organisms than it have long been on land and become higher vertebrates on land. Therefore, amphibians are very low-level beings, and if there is a creature that wants to evolve into an amphibian, the conditions that need to be met are very harsh.

The amphibian becomes a habitat in the sea, land and sky, which means that its life form will be more advanced, first of all, the first must have wings, if a creature is born in the ocean, how can it grow wings? Among the creatures of the earth, there are only viviparous or born creatures, and it is possible that they will meet the conditions for the appearance of wings. They cannot stay in the water for long periods of time unless they evolve to have two ways of breathing, or to hold their breath for a while like a whale before resurfacing to breathe.

The second is that if amphibians really exist, then their life forms may be higher than humans, there will be no natural predators on the earth, they will be threatened in the ocean, they can live on land, they can be threatened on land, they can soar in the sky, and such amphibians will have more advantages than ordinary creatures.

According to the current direction of the evolution of life on Earth, the possibility of the emergence of amphibians is very small. Although the evolution of different organisms is not necessarily perfect, they all have their own unique advantages, which can allow them to establish themselves on the earth.

Sea, land and air amphibious means perfection, but it is impossible to evolve into a perfect species. The tissues and organs of sea, land and air amphibians are too complex, and the survival rate will not be high.

In the process of learning about the earth, scientists have discovered many anomalous phenomena, and high technology has kept pace with the times. Carry out the process of building pyramids. It is believed that before humanity established the current social system, the earth had a more developed prehistoric civilization.

Due to the long history, it is not easy to find traces of prehistoric civilizations. However, according to some historical data, the reason why the ancients were able to develop high technology may have something to do with extraterrestrial civilizations. Stepped on the land.

Such an opinion is not unfounded. For example, in ancient paintings from countries around the world, evidence of the existence of extraterrestrial civilizations has been found.

Because there are so many species on the planet, if such species exist, we may not be able to find them.