As mammals, did the ancestors of whales live on land? Why is it back in the water?

A lot of people know about whales.

Not a fish, but a mammal.

But many people may not know that the ancestors of whales first lived on land, but later returned to the water。The main reason for this is that the water is more suitable for them to survive.

1. The ancestors of whales originally lived on land

There is an ancient creature called the bucky whale, which is considered by scientists to be the ancestor of whales。Of course, if you only look at the Bucky whale fossil, many people may not associate it with the current whale, after all, the difference between the two is still relatively large. But the reason why scientists are so sure that the bucky whale is the ancestor of the whale is because of the scientists.

Through the study of the inner ear of the bucky whale, it was found that the bucky whale has evolved a unique auditory system, and this auditory system not only allows the bucky whale to obtain information through underwater vibrations, but also retains the exogenous tract suitable for life on land. In addition, according to the excavated Bucky whale fossils, it has been found that the Bucky whale has four claws, which also allows the Bucky whale to live on land. Therefore, it is known that the whale's ancestor, the bucky whale, lived on land before returning to the water.

Second, I went back to live in the water because it was more suitable for survival

For organisms, if they have access to more food in a certain environment, then they naturally prefer to live in that environment. The same is true for the ancestors of whales, although they were amphibious mammals, but as they discovered that water allowed them to get more food, they naturally preferred to live in the water, and gradually became more accustomed to predating in the waterAnd it will gradually evolve in order to better adapt to the living environment in the water, and slowly evolve into the whale that people know today.

In general, the whale's ancestor, the Bucky whale, did live on land before, and the reason why it returned to live in the water is that it is more suitable for them to survive than on land, and it also provides them with more food.

As mammals, the ancestors of whales started living on land, and later they returned to the water because there was less food on land.

Whales return to life in the water because of changes in their surroundings and the laws of survival.

Live on land. The whales felt that life on land was not suitable for them, so they chose to go back to the water.

Yes, it is because of the nature of living things, in the process of evolution, the limbs have receded, so there is no way to walk upright, and biodiversity is protected.

Whales are considered to be one of the largest creatures in the oceanHowever, many people have some misconceptions about whales, believing that whales should live in the sea all the time. However, according to research,The ancestors of whales are most likely quadrupeds that lived on land, due to the unsuitable terrestrial environmentTransferred to the ocean.

Evolution and evolution of living thingsClosely related to the surrounding environment, the reason why the ancestors of whales moved to the sea to surviveIt has a lot to do with the living environment at that time。In prehistoric times, the land of the earth was basically the territory of dinosaurs, and the rest of the creatures were not as strong as dinosaurs, so it was difficult to compete with dinosaurs for territory.

However, with the constant change of the terrestrial environment,Land is no longer suitable for most creaturesAnd the area of the ocean is also expanding, and the marine resources are also increasing, which has prompted many organisms to migrate to the ocean to survive. In the past, the ocean was not as warm as the current ocean, but the temperature was very high, and it was difficult for ordinary creatures to survive in it. ButThe ocean's resources are very abundant, which makes many organisms choose to enter the ocean to survive.

Actually, at that time,Most of the creatures in the sea were dinosaurs。Later, due to various natural disasters, most of the dinosaurs and creatures in the seafood were extinct one after another, allowing the creatures in the ocean to be re-screened, and the surviving creatures also gained greater living space and survival resources.

This kind of surviving creature isMammals,Whales are one of them。So,Life on land is constantly evolving, thus realizing the evolution from terrestrial life to marine life. It's hereAbout 40 million years ago, cetaceans have actually begun to survive in the ocean.

At this time, there are very few on landCetaceans.

Scientists speculate that the ancestors of whales migrated from land to sea to familiarize themselves with the fact that it may have cost them to surviveTen million years。The whale was able to survive for so long precisely because the natural disasters at that time created the conditions for it. The extinction of natural enemies, the increase of living space, and the increase of survival resources, that is, food resources, all of which have provided great help to its evolution, and thus made it becomeThe current hegemon of the seas.

In addition to the ecological position vacated by the ocean, before the extinction of the dinosaurs, it was difficult for mammals to fight the dinosaurs, and a large number of resources were occupied by the dinosaurs, especiallyLand resources are basically the territory of dinosaurs。The oceans are very rich in resources, but most of the dinosaurs were not structured enough to survive in the ocean. Therefore, largeThe number of whales completes the transition from land to sea.

In fact, at that time, there were many other organisms that changed from land to sea, for exampleExtinct sauropods。At that time, natural disasters were a great threat to life on land, and the vast ocean area and abundant food naturally attracted the attention of mammals.

Darwin's theory of evolution mentionsNatural selection, survival of the fittest。This statement is still true even today. Only organisms that can adapt to the environment can have space to survive in this environment.

In fact, there is no reverse evolution in the absolute sense of living species, they are just a survival path chosen to adapt to the environment and obtain food, entering the water to survive and hunt, so that they can choose to go back into the water.

The reason why this happened was because the living environment at that time was relatively harsh, and the situation was constantly changing, which was very unsuitable for them to survive, so they returned to the ocean.

Because the land has changed a lot, they can only survive better when they enter the ocean, and they are also like this because of evolution.

Using DNA analysis, scientists believe that whales evolved from a group of animals, including hippos, camels, and pigs. So whales are four-limbed animals that originate from land.

According to the current scientific inference, the whale originated from the land, and in order to better adapt to the marine environment, his limbs will gradually evolve into the limbs of fish. This is mainly for a better life in the water and better hunting.

Paleontologists believe that whales evolved as a wolf-like mammal. Scientists, on the other hand, use DNA analysis to suggest that whales evolved from a group of animals, including hippos, camels, and pigs. Recently, fossilized whale bones from about 50 million years ago were discovered in Pakistan, but instead of resolving the evolutionary debate, the discovery has deepened the mystery because the fossils do not support any of these theories, and the mystery has not yet been solved

In the evolutionary history of living things, from ancient terrestrial tetrapods to modern aquatic mammals, there has been a missing link. Therefore, scholars believe that auspicious traces, and the above-mentioned discovery of ancient whale fossils fills this gap. However, why did the ancient whale migrate from land to water?

Originally, ancient whales reproduced and nursed their offspring on land, just like today's sea lions, fur seals, seals and other animals. However, the evolution of organisms is often influenced by environmental changes, and about 50 million years ago, because the ratio of food in water to predators was easier for ancient whales to survive than on land, they began to move into shallow waters close to the shore; About 10 million years ago, the descendants of ancient whales evolved to be very similar to modern whales, with long tails, short necks, and hind feet that degenerated into fin-like appendages, and became accustomed to living in the sea, and they no longer came ashore.

Based on scientific research, we have found that whales used to live on land, so why do koi fish drive from land to ocean? In fact, all of this is closely related to the destruction of the earth's environment, and the dinosaurs were the masters of ancient times, when there were dinosaurs on land.

Due to the natural environment of the land at that time, the plant community seemed to be large, and some herbivores were very large, which allowed the dinosaurs to have a certain amount of food to survive. But since then, the earth's natural environment has continued to change, the earth's environmental temperature has increased, the temperature of the ocean has also increased, and some organisms have found that the ocean is stronger than the land life after entering the ocean.

So the creatures slowly migrate into the ocean, and so do the whales. But some biologists have raised some doubts, dinosaurs were the masters of the land at that time, so why didn't the dinosaurs survive in the ocean after the temperature shift?

In fact, it may have been a mystery to this day, but biologists think that it may have been a catastrophe on Earth that caused the extinction of the dinosaurs. Therefore, dinosaurs did not enter the ocean to survive, otherwise the ocean is the world of dinosaurs today.

The evolution of the earth has taken place in many stages, from land to sea, and from sea to land, and whales survive when they enter the ocean from land to sea in the earth's natural environment. Some mammals, on the other hand, are the other way around, and mammals live from the sea to the land, and the mammals slowly evolve on the land and gradually have our occurrence.

There is a link in the evolution of the earth from land to sea, so the variety of oceans is also relatively rich. This rich and colorful population provides enough food for some large and medium-sized carnivores, so that some large and medium-sized carnivores can also live well in the ocean, and whales are one of them.

Whales have lived in the ocean for tens of millions of years, and today's whales have long been inseparable from the ocean, and experts have been speculating about why whales live from land to sea, and then finally got a result, which is also unavoidable.

At that time, dinosaurs were the masters of the earth, dinosaurs were the highest level of food nets, and dinosaurs needed a lot of ingredients, and whales were mammals.

At that time, whales were unlikely to compete with dinosaurs on land, and whales had to migrate to the ocean in order to get more and more abundant.

After that, the whales settled in the ocean, so why don't the whales return to land from the ocean now? Since there is no need at all, the sea is relatively rich in food, and whales do not have to worry about the lack of resources at all, so whales have no idea of returning to land to survive.

Summary: The bigger problem for all populations is survival, and no one believes that people will be the same as the dinosaurs, and that people are indeed the largest creatures on the planet at this stage. But people are either too insignificant, and people have to be stronger and stronger, so that they can fit into the harsher environment and make people's culture last longer.

According to relevant research data, the ancient ancestor of the whale is a four-horned beast with an 80% chance, and this four-legged beast belonged to land creatures in ancient times, but with the continuous change of the earth's external environment, this four-horned beast has also entered the ocean, from land creatures to marine creatures, which also confirms the view of survival of the fittest.

There is certainly a scientific basis for this claim, because whales are mammals, and all mammals live on land, so the ancestors of whales should also be animals that live on land.

There is a scientific basis for this claim, as whales breathe with lungs rather than gills, and whales' fins are more similar to the limbs of land animals.

There is a scientific basis, because the ancestors of whales are similar in appearance to cattle and sheep, are mammals, and then are also carnivores, which can be passed by land and sea.

There is a certain scientific basis for this, because it is a mammal, and large mammals, in general, live on land.

Yes, scientists have found that it is the continental plate change that makes whales go to sea.

I don't think there's a scientific basis for it, but from the fossils of whales, it can be found that they are born with fins, which allow them to survive on the ocean floor.

Known as the Early Eocene Warm Period, this multi-million-year period of high temperature brought about the most significant change in the high temperature belt, which in present-day Pakistan was flooded with riverbeds and rivers.

As water mammals, why do whales rarely live in fresh water? We all know that the whale is not a fish, but it is a mammal that includes some dolphins and fresh bellows. They live by the sea to the ocean.

What are the ancestors of whales? How else to get back from the land to life in the sea?

There are 12 sects of whales in the world, belonging to mammalian whales, the largest blue whale has a fuselage of 33 meters, the smallest drill class is only 1 meter, and weighs less than 100 kilograms, so it can be said that the difference in size is huge. Then, biologists knew that whales were mammals, and that it evolved from the age of the erector. In addition to the method of breastfeeding at birth, modern whales have a neck, and there is a precedent but fin.

Shape, with hind limbs but completely degraded. Therefore, paleobiologists speculate that the ancestors of whales were eventually active on the land, and that the fossils of mammals from the world in the world have been in various stages in the oceans, and the idea of evolution is a strong evidence to confirm.

Whales begin with the evolution of the land. It started with the beginning of a sheep and is almost identical in size and weight, the size, size and weight of the sheep, known as the Indian mosco or Pakistan, but it may be eclipse or meat, and there is no resemblance to the current whales and dolphins. For an unknown reason, they have begun to live in water, first evolving into an otter-like animal known as a landing whale, a tourist whale, and then a short seal, a sea lion, a seahorse, and a manatee, called a toothed whale that has developed from a land animal to an aquatic animal for at least 15 million years, and there are enough fossils to prove this evolution.

For example, there are four sets of early whale fossils from the Barkis Rolling Tank to explain the evolution of whales, and their ears, 4300 – 4600 whales are short legs, long tails, and long beaks. Some strong hind limbs, the whale at this stage is called the rodou whale, which is believed to be the first whale to spread to the tropical seas of the world. It has a common feature that has evolved a set of hearings that can accommodate life underwater.

The system is based on its later evolution of ultrasonic transmission and receiving equipment. Next, their front legs gradually degrade to their flippers, the hind legs and rump disappear, but the tail grows larger and larger, and the fish grows laterally, but still retains the backbone of the modern whale. Traces of the pelvis often return to the ancestors, for example some newborn whales have rare limbs that ooze finches.