If elephant fossils are found in the area, it is possible to speculate what this was before

Hebi 12 million years ago elephant At that time, humans should be able to walk It is also the biology of looking at the origin of human beings is also comprehensive Now the discovery of Homo erectus millions of years ago is not the origin of this kind of even the race is not the same It is not sure which is the current human In addition, it is all moving back and forth It is impossible to be in a certain place It should be a certain range But this is all a biological matter It mainly depends on human civilization and the Chinese Yanhuang period Yangshao culture Central Plains civilization has survived to this day The four major human civilizations are all related to rivers and have created strong perseverance.

That's not necessarily, mammoths have long hairs and are suitable for temperate life. In ancient times, Cao Chong's elephant weighing was also carried out in the temperate zone (Cao Cao never went to Lingnan and crossed Jingzhou in his life).

Savannah or love rainforest.

Elephants and mammoths.

There are common ancestors, but they are different branches, so elephants did not evolve from mammoths. Elephants and mammoths have many different characteristics, for example, elephants are not as hardy as mammoths, they are much smaller in size than mammoths, and they are not as strong as mammoths.

First, the distribution of elephants.

Today, elephant special zones are widely distributed, mainly in sub-Saharan Africa.

and Southeast Asia. In southwestern China, there are also small numbers of elephants in Xishuangbanna, Yunnan province. Elephants often live in some forests, grasslands, and river valleys because of the excellent environment here, which is very suitable for survival.

Second, the characteristics of elephants.

Elephants are much smaller than mammoths, but they are also very large. From a morphological point of view, the main morphological features of an elephant are its ears and nose. Elephants have very large ears and very long snouts.

In the past, elephants had such very large tusks, but later, due to the evolution of the species.

This ivory eventually degenerated.

One of the characteristics of elephants is that they can hear infrasound.

and communicate with each other through infrasound waves. This is a trait that many animals do not have. Elephants are social animals. They work as a family unit and have clear rules about the route and time of the day's activities.

Third, the comparison of mammoths and elephants.

Mammoths are hardy, whereas elephants are not as hardy as mammoths. As a result, they live in very different places. Mammoths live mainly in the subarctic and boreal zones and are mainly composed of grasses and shrubs.

This is the biggest difference from elephants. In addition, the morphological characteristics of mammoths and elephants are also very different. The tusks of mammoths are very large, whereas the tusks of elephants are not as large as those of mammoths, and the hair of mammoths is much longer than that of elephants.

The two reasons why the Yellow River elephant fossils are well preserved are:

1.Good geological conditions: The Yellow River elephant fossil is located in the Yellow River Delta region, which is contained in the sedimentary rock area, and the geological conditions are very suitable for the preservation of fossils. In addition, the soil of the Yellow River Delta region is rich in organic matter, which is also an important factor in the preservation of fossils.

2.Suitable preservation environment: The Mobozhou area of the Yellow River Delta is a relatively closed area, with a mild climate and abundant precipitation, and due to the influence of human activities, the ecological environment here has been well maintained.

These factors have enabled the Yellow River elephant fossils to be completely preserved in a relatively short period of time. It is these two reasons that make the fossils so well preserved.

Fossils refer to the remains or traces of paleontology that have been preserved, and are important evidence for studying the origin and evolution of life.

The earliest evidence of a wild collapse found dates back to some 3.5 billion years ago on Earth, and these fossils are microbial remains and trace element deposits found in rock formations near the Canadian Arctic.

These microbes were the first prokaryotes to appear on Earth, and they do not need oxygen to perform their activities and are able to use photosynthesis to produce energy.

These microbial fossils prove the existence of primitive life forms on the early earth, and provide important clues for us to understand the origin of the earth and life, and are important evidence for our understanding of the origin of the world.

Elephant fossils are common, but complete fossils are rare, 400 kinds of ancient elephant fossils have been found, the oldest of which is the ancestor elephant, also known as the Mohu elephant, is living in lakes and swamps 5000 years ago, the shape is very similar to pigs, and there is also an unusually prominent nose, which contains 4000 muscles, some similar to today's tapirs, very good at diving and swimming, mainly feeding on aquatic plants and other plants in the water, and the elephant's long trunk is for the convenience of diving, Easy to breathe.

Between 3 million and 10,000 years ago, elephants roamed the banks of the Yellow River, enjoying the good times that nature has to offer.

And scientists have also compared the genetic sequence, found that elephants are the closest to manatees, and found that many of the structure and development processes of elephants have the characteristics of aquatic animals, in combination with the characteristics of elephant ancestors, it is inferred that elephant diving breathing theory, but some scientists have found that if you simply make the nose longer, when diving more than 2 meters, it may cause capillary rupture due to the pressure difference between the pleural cavity and atmospheric pressure.

But in 1681, a doctor in Berlin dissected the elephant, only to find that the elephant did not have a pleural cavity, but was covered with loose connective tissue between the pleura, which could continue to slide with breathing, so all the blood vessels in the chest cavity were well protected, and the elephant's diaphragm was also about 3 cm thick, all of which proved that the elephant originally lived in the water, and the long trunk became the key to diving breathing.

Uncommon, because there are prerequisites for becoming a fossil, after death it is buried at a certain depth, it is squeezed and dehydrated, and then calcified, the manager for a long time, the elephant haunts the plains, not in the mountains, it is difficult to bury the elephant, unless it is a swamp, but if it falls into a swamp, the carcass will be soaked and rotten, and it is impossible to petrify.

Not common, the main ones found in our country are dinosaur fossils from hundreds of millions of years ago.

Uncommon, even fossils are not very common things, we find more dinosaur fossils, but there are few or no fossils of primitive elephants, so elephant change stones are definitely uncommon.

Fossils left behind by large animals are generally uncommon and rare. Elephants are huge, and if there were intact fossils, they would be rare.

Common fossils are shellfish fossils, fern fossils, and some small fish such as wolffin fish.

Uncommon because of the prerequisites for becoming fossils. After embedding to a certain depth, squeezing dehydration, and then calcification. It's been a while. Elephants are found in plains, not mountains. It is difficult to bury an elephant unless it is a swamp, but falling into a swamp, the carcass is soaked and cannot be petrified.

I think it's more common for elephants to become fossils, because in ancient times, there were a lot of elephants.

This phenomenon is uncommon. Because the conditions required for the formation of large animal fossils are more demanding.

It seems that it is impossible to know the origin at all.

Here's how it was corrected: Scientists speculated about the origin of the fossils based on the appearance of the Yellow River elephants.

Scientists have speculated on the origin of the Yellow River elephant fossils.

It seems that it is impossible to know the origin at all.

Organic matter must have a hard part, living things must be avoided from destruction immediately after death, and living things must be quickly buried by something that hinders decomposition.

Conditions for the formation of fossils: (1) Organic matter must have hard parts, such as shells, bones, teeth, or woody tissue. However, under very favorable conditions, even very fragile organisms, such as insects or jellyfish, are able to turn into fossils.

2) Creatures must be avoided from destruction immediately after death. If a creature's body is partially crushed, decayed, or severely weathered, this may alter or eliminate the possibility of the organism becoming fossilized. (3) Organisms must be quickly buried by something that hinders decomposition.

And the type of material that is buried usually depends on the environment in which the organism lives. The remains of marine animals are often fossilized because they die and sink to the bottom of the sea, covered in soft mud. Soft mud becomes shale or limestone in later geological epochs.

Fine-grained sediments are less likely to damage the remains of living organisms. In some fine-grained sedimentary rocks of the Jurassic period in Germany, fossils of fragile organisms such as birds, insects, jellyfish, etc., are well preserved.

Fossils are the relics of ancient creatures buried in the strata. The most common fossils are formed from teeth and bones. After the death of the ancient animal, the soft tissues such as the internal organs and muscles of the corpse will quickly decay, and the teeth and bones can be preserved for a long time because there is less organic matter and more inorganic matter.

If the body happens to be buried in sediment, cut off from the air, the process of decay slows down. There is slow-flowing groundwater in the sediment voids. On the one hand, the water dissolves the minerals in the rock and sediment, and on the other hand, the excess minerals in the water precipitate or become crystals, which gradually seep into the bones buried in the sediment and fill the space left by the decay of the organic matter of the teeth and bones.

If the conditions are right, the minerals that seep into the bones from the outside can effectively replace the original organic matter of the bones before they decay and disintegrate, and the teeth and bones are preserved as fossils. Because a large number of minerals in fossils are slowly replaced by extremely careful organic matter, the original shape of teeth and bones can be preserved in full circle, and even the form of tissues that can be seen by electron microscopy can be preserved as they are. Over time, the weight of the bones increases, and the original teeth and bones become stones that still preserve the original shape and internal structure of the teeth and bones, a process called "petrification".

They are formed by the blowing of wind and sand over time, and then exist in the geology over a long period of time, and finally form fossils.

These fossils are tens of thousands of years ago, and some organisms were crushed into the ground during inefficient movement, and they became fossils after a long period of exposure to wind and sun.

It was after the extinction of animals or plants a long time ago. Buried in the earth, it became a fossil with the concealment of some minerals and some elements.