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The top ten most ferocious dinosaurs in prehistoric times
Top Ten Most Fierce Dinosaurs in Prehistory _ Another Prehistoric Ruler-Crocodile Xinhuanet 20 13 10.30 The latest paleontological survey found that dinosaurs were not the only rulers on the earth about 1. 1 100 million years ago.

Paleontologists at the University of Chicago in the United States recently discovered the fossil of a giant crocodile in Tesanel, Niger. The scientific name of this crocodile is "sarcosuchus", which means "King of Crocodiles". At the same time, these researchers were surprised to find that this crocodile living in water can be called a "monster". It is about 12 meters long and weighs 8 tons, which is 1 times larger than the largest crocodile that people can see now. Moreover, this crocodile and dinosaur were in the same period-Cretaceous, and it was one of the most ferocious carnivores at that time. What surprised the researchers even more was that in ancient times when dinosaurs were rampant, this crocodile sometimes preyed on dinosaurs. So, how did it kill dinosaurs? The researchers found that unlike many ancient crocodiles living in shallow waters, this reptile crocodile takes rivers as its home. At that time, this land was covered with dense forests and countless rivers crisscrossed. This crocodile lives in these wide rivers.

Whenever dinosaurs feel hungry, crocodiles drinking water by the river is the best time to kill dinosaurs. This crocodile can prey on dinosaurs mainly because it has a very special body structure.

Its nose has a huge bulbous protuberance with a cavity in it. This makes its sense of smell extremely sensitive and can make strange sounds. Moreover, this super crocodile has unusual teeth. Compared with the general fish-eating animals, its mandibular teeth are not only staggered with the maxillary teeth, but also accurately embedded in them. Among more than 100 teeth, a row of front teeth can tear like a medium-sized dinosaur.

In addition, its eyes are inexplicably tilted upwards. Whenever dinosaurs go to the river to drink water, crocodiles hide their bodies weighing several tons underwater, with only one pair of eyes exposed on the water. Then, it slowly approached its prey, waiting for an opportunity to launch a sudden attack. In this way, many dinosaurs became its food in the blink of an eye.

In addition, there is a flaky bone "armor" on the crocodile's skin. These "armor" not only mark the age of crocodiles like tree rings, but also protect crocodiles from harm when preying on prey. As a matter of fact, as early as 1964, French scientists had excavated the skull fossils of this crocodile in Niger. Later, the archaeological team of the University of Chicago led by Paul Sereno also excavated some similar fossils in 1997 and 2000 respectively. But these incomplete fossils only remind researchers that this crocodile may exist. Recent discoveries show that this crocodile may be the largest crocodile in biological history. As the paleontologist Paul Sereno said in an interview, at that time, this crocodile was very powerful, probably the kind of thing that gave herbivorous dinosaurs nightmares.

Like real crocodiles, king crocodiles may have a wide range of sounds. Crocodiles may use these sounds to define territory, attract the opposite sex and communicate with their offspring.

The crocodile's eye socket is slightly upward, indicating that this animal may spend most of its time in the water, observing the prey on the shore.

They seem to feed on large fish and turtles from the Cretaceous period.

Protruding jaws and strong teeth are used for grasping and crushing. Their main prey may be large animals and smaller dinosaurs. They lurk in the water, dragging their prey into the water, crushing, drowning and tearing.

Crocodiles may have hunting conflicts with E Long found in the same stratum. For example, E Long is a theropod dinosaur with a length of 1 1 m and a lower jaw similar to that of an alligator. Paul Sereno claims that because these animals are very large, they can easily kill small and medium-sized dinosaurs, including young individuals of giant sauropods with long necks and small heads in Africa.

Other crocodile biologists doubt the hunting ability of this giant animal. The slender snout of crocodiles is very similar to the narrow snout of modern alligators, fake alligators and alligators. All these species feed on fish and cannot track large prey. Compared with modern Nile crocodiles and extinct crocodiles, the skulls of Nile crocodiles and crocodiles are very wide and thick, suitable for biting large prey.

Because there were a large number of total fin fish in this area at that time, many experts thought that crocodiles were just a large fish eater, a scaled version of alligators now, rather than dinosaur killers.

However, the snout width of young crocodiles is similar to that of modern narrow-snout crocodiles, but the snout width of adult crocodiles is extremely expanded. If the ratio of nose to body is calculated, crocodile is narrower than Nile crocodile, but its width is still wider than alligator. In addition, the crocodile's teeth are not staggered like most fish-eating crocodiles, indicating that it mainly feeds on fish and subsidizes land animals, just like the Nile crocodile.

The total number of bearded fish living in the same waters as crocodiles often exceeds1.8m and weighs 90kg ... This increases the possibility of hunting large or medium-sized land animals, instead of feeding on these large fish, many of which have protective layers formed by intradermal bones.

654.38 billion 654.38 billion years ago, in the early Cretaceous, the Sahara desert was a tropical plain, with lakes, rivers and streams flowing through it, and the shore was covered with vegetation.

Modern real crocodiles are very similar in appearance and appearance, and tend to live in different areas; Crocodiles are a kind of crocodiles. Crocodiles vary greatly in size and appearance, and most of them live in the same area.

There are four kinds of crocodiles in the same rock stratum as emperor crocodiles, including short crocodiles with a head length of 8 cm. They occupy diverse and different niches instead of competing for food resources.

Crocodiles should be as long as buses when they grow up, about 1 1.2 to 12.2 meters long and weigh 8000 kilograms. The largest crocodile is the saltwater crocodile, which is only half its length (6.3m) and weighs about1200kg.

The biggest crocodile should be the oldest. According to the growth rings of 80% growing individuals (based on the largest known crocodile individual), it shows that crocodiles continue to grow in their pre-life period of 50 to 60 years. Modern crocodiles grow faster, and it takes about 12 years to reach adult size, and the growth rate is slower after adulthood.

Its head is as big as an adult, about 1.78 meters. The length of maxilla is longer than that of mandible, which leads to malocclusion. The chin is quite narrow, especially for the young. The nose and mouth account for 75% of the length of the skull.

【 1 】 The crocodile skeleton model located in Indiana Children's Museum has 132 thick teeth in its jaws, which Hans Larson described as railway spikes.

The teeth are conical, suitable for grasping and clamping prey, rather than the narrow torn teeth of modern crocodiles (similar to some land carnivores). The bite force of the crocodile's jaw can reach 80 thousand Newton, making it difficult for its prey to escape.

It has a row of scales or osteogenesis arranged along the back, and the maximum scale length is 1 m.

Scales can be used as armor, which may help support their huge bodies, but it also limits their flexibility.

There is a strange depression at the end of the mouth and nose of the crocodile, called "Bulla", which is equivalent to the "Ghara" of the alligator.

Unlike alligators, all crocodiles have this groove at the end of their nose and mouth. This shows that it is not a sexual selection feature of crocodiles, but that the male crocodile has a depression at the end of its nose and mouth. The purpose of this structure is still unclear. Paul Sereno and other reptile experts have different views on the use of crypts, from helping the sense of smell to the vocal organs.

Crocodile fossils were found in the Ténéré desert in Niger, which is a part of the Sahara desert. Comparison of the Skull of the First Crocodile and the Common Crocodile The teeth and scales of the King Crocodile were discovered by the French paleontologist Albert Rabe in the 1940s and 1950s.

It was not until 1964 that geographers discovered its head and attracted the attention of Philip Tasshute. He returned to Paris with fossils, and his head was examined by France de Broyne. 1966, they officially described and named this animal, and its scientific name was Sarcosuchus imperator, which means "muscle-crocodile-emperor".

The normal specimen is MNN 604, which is the standard of Niger National Museum. After research, the specimen was sent back to Niger.

The second and third major expeditions were conducted by Paul Sereno in 1997 and 2000. He found some bones, a large number of skulls and 20 tons of classified fossils in the stratum of El Rhaz, which was from Apdia to Albian in the late Cretaceous. It took them a year to complete the specimen of crocodile. The excavation results were published in February, 2001/kloc-0. The members of the excavation team include Paul Sereno, a resident explorer of the University of Chicago and the National Geographic Society, Hans Larson of Yale University and the University of Toronto, Christian Sidor of the School of Plastic Surgery in new york and Boube Gado of Niger.

These crocodile fossils come from several individuals, including the spine, limbs, hips, scales on the back and more than six skulls.

Many crocodiles have thick and heavy skulls, so the probability of finding the skull is higher than that of finding other parts of the body.

This is contrary to the situation of dinosaurs, whose skulls are fragile and rarely become fossil records.

Bone formation in the skin of prehistoric reptiles can be used to judge age, because there are annual rings on it, just like tree rings. An adult with 80% body length of the largest individual found 40 annual rings, indicating that it has survived for at least 40 years. However, this method of calculating age is controversial.

Some scholars have suggested that it is difficult to calculate the age of animals by calculating tree rings in the absence of extreme climate in Mesozoic.

Because no complete skeleton was found, the largest skull was measured, and then compared with modern crocodiles to calculate the length of crocodiles. Modern crocodiles have the same proportion of head and body, regardless of age and sex. The main difference is that crocodiles with long kisses account for a larger proportion of their heads than crocodiles with wide kisses.

The length of crocodiles is calculated by the average ratio of alligators to saltwater crocodiles. Sereno also measured the existing crocodiles in India and Costa Rica as the calculation data in his research.

In a special project of National Geographic Society, Gregory Millard J. Erickson of Florida State University, Kent fleet of Florida University and Christopher Rapp of northern arizona university used measuring instruments to induce American alligators to bite a stick in a crocodile park in Florida.

The maximum bite force of crocodiles they measured was 2 125 lb (9450 Newton). After comparing the bite force of 60 kinds of animals, they think that the bite force of animals is directly proportional to their size. Using this method to calculate the bite force of crocodiles, the result is 18000 pounds (80000 Newton).

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Top Ten Most Fierce Dinosaurs in Prehistory _ Ancient Dinosaur Teaching Plan

1. sauron is a huge theropod carnivorous dinosaur. Sauron has a long and thick skull and dozens of teeth as sharp as a sword. By comparing with similar species, the researchers believe that Sauron is one of the largest carnivorous dinosaurs at present, with a body length of 12 m and a weight of 8.25 tons. Sauron lived in the middle Cretaceous from Sennorman to Toulon, and lived in North Africa at the same time with giant carnivorous dinosaurs such as Spinosaurus, Fangodon and Triceratops.

2. Sietzosaurus is a giant carnivorous dinosaur living in the United States. It lived in the middle and late Cretaceous, and lived in the Sennorman stage of the Cretaceous from 99 million to 93 million years ago. It is the ninth largest carnivorous dinosaur after Spinosaurus, Tyrannosaurus Rex, Mantosaurus, Mapulong, Squaodon, Southern Dragon, Oshara Dragon and Queiroz. According to the research, Sietzosaurus, like the extremely famous distant relative Tyrannosaurus Rex, also has a huge skull, a stout body and long and developed legs, but its forelimbs are developed and its claws are obviously larger than its distant relative Tyrannosaurus Rex.

3. The southern behemoth, smaller than Spinosaurus, Tyrannosaurus Rex, Tyrannosaurus Rex, Mapuron, Fangodon and Queiroz, is the seventh largest carnivorous dinosaur. This behemoth was born in Argentina in the middle Cretaceous (Sennorman stage 654.38 billion to 95 million years ago). It has a huge, narrow mouth and sharp but thin teeth.

Its biting force is terrible, its biting speed is fast, and its teeth are as thin as a knife. It walks on two legs. According to the fossil specimens, the largest individual length 13.5 m, height 3.8 1 m, weight 9.2 tons, and skull length 175 cm.

Queirosaurus, whose name means "tyrant giant", is the seventh largest carnivorous dinosaur, with the maximum total length approaching13m and the maximum weight of 9.3 tons, second only to Spinosaurus, Tyrannosaurus Rex, Manlong, Fangodon, Mapuron and Southern Dragon. Skeletal structure shows that Quetzosaurus belongs to the dinosaur between the southern behemoth and the shark-toothed dragon, and Quetzosaurus belongs to the subfamily of the shark-toothed dragon, which is closer to the southern behemoth and Mapulong, but relatively far from the shark-toothed dragon. Quetzosaurus, one of the earliest sauropods in Argentina, lived from Adip stage in the early Cretaceous to Album stage in the middle Cretaceous, and lived1.1.800 million years ago-1.

The body mass index (BMI) and body firmness surpassed all theropods and carnivorous dinosaurs except Tyrannosaurus rex, but the head ratio was smaller than that of Nanji, and the BMI and body firmness were second only to Tyrannosaurus rex among carnivorous dinosaurs. It has medium-sized forelimbs and claws, but it is bigger than other close relatives of the Craodon family. Like other close relatives, Quillosaurus is also considered to feed on medium to giant sauropods. At present, two relatively complete bone fossils and more than 60 complete tooth fossils of two individuals have been found. Because of its appearance, bone structure, name meaning and ecological advantages, it is similar to the famous Tyrannosaurus Rex and is also called "Tyrannosaurus Argentina" by some dinosaur lovers.

Oshara Dragon is a huge theropod dinosaur, which lived in Brazil from the middle to the late Cretaceous 98 million to 93 million years ago. It belongs to spinosaurinae of theropoda. The body length reaches 13 meters, the height is 3.4 meters and the weight is about 9 tons. Tyrannosaurus Rex, also known as Tyrannosaurus Rex, belongs to the Tyrannosaurus Rex family, and its name means cruel lizard king. It is one of the largest carnivores in history and the most famous carnivorous dinosaur. It is one of the latest dinosaurs, with a body length of11-14.6m (15.3m is the length of a bend). The average hip height is 3.5 meters and the highest is 4.2 meters. The average height is 5.2 meters and the maximum height is 6 meters (from the ground to the head). The average weight is 9 tons, the maximum weight is 14.86 tons and the head length is 1.3~ 1.55 meters. The bite force ranks first among terrestrial creatures and carnivorous dinosaurs (the bite force can reach 20 tons), and it is also the strongest carnivorous dinosaur. Tyrannosaurus rex lived in the Maastricht stage at the end of Cretaceous, about 68.5 million to 65.5 million years ago. It was one of the last non-avian dinosaurs before the Cretaceous-Tertiary extinction event. Fossils are distributed in the United States, Canada and Mexico in North America, and the distribution range is wider than other Tyrannosaurus rex. It is one of the recently extinct dinosaurs. Spinosaurus aegypti is a theropod dinosaur, which lived in Cretaceous Africa, about112 million to 65 million years ago. Spinosaurus was first discovered in Egypt, Germany in 19 12, and was described and named in19/5. The original specimen was destroyed during World War II, but in recent years, other body parts such as skull, claws, arms, tail cone and crown have been found. Spinosaurus has obvious long spines on its back, which extend from the nerve spines of the spine and can reach 2 meters in length. It is inferred that there are skin connections between the long spines, forming a huge sail; However, some scientists believe that these long spines are covered by muscles, forming a hump or back. At present, there are several views on the functions of this sail, including regulating body temperature and visual display. The skull of Spinosaurus is long and short, and its shape is similar to that of Shanglong. Spinosaurus is thought to feed on medium-sized ornithopods, sauropods and fish.

Based on the study of oxygen isotope composition of teeth of Spinosauridae, it is speculated that Spinosaurus is a land animal, but it occasionally lives in water, similar to polar bears. According to recent estimates, Spinosaurus is the largest known carnivorous dinosaur, even bigger than Tyrannosaurus Rex and Tyrannosaurus Rex. These calculations show that Spinosaurus is 65,438+08-22 meters long, 4-5 meters high and weighs 65,438+05-22 metric tons. Liang Long is one of the most recognizable dinosaurs, with a huge body, a long neck and tail, and strong limbs. Liang Long is 27 meters long. Because the back bone is light, it is thin, weighing only a dozen tons, and its weight is far less than that of Puzzled Dragon and Brachiosaurus. Its teeth only grow in the front of its mouth, which is very small, so it can only eat soft and juicy plants. The long whiplike tail can help it resist the enemy and drive away other small animals wherever it goes.

Liang Long's head is small, so he is not clever.

Liang Long is a herbivore.

When eating, it does not chew, but directly swallows food such as leaves. Teaching material analysis: Dinosaurs are the most striking extinct reptiles in biology. They have lived on the earth for hundreds of millions of years. During this period, they have continuously developed and evolved, forming a wide variety of dinosaur worlds. Dinosaurists have been studying and exploring the origin, species, morphology, living habits and extinction reasons of dinosaurs. The design intention of this lesson is to guide students to have a deeper understanding of dinosaurs through the exchange of dinosaur materials in textbooks and collected by students, and on this basis, boldly imagine and give full play to create works of art with dinosaurs as the main body.

Student analysis: Junior three students have seen dinosaurs in large numbers from storybooks, TV and movies, and cartoons, and they have a great interest in dinosaurs, and even know more about dinosaurs than their teachers. So in this class, I take the form of students preparing materials and sharing them on stage, so that students can learn independently, and I will summarize and guide the teaching. This teaching design effectively integrates the training of dinosaur scientific knowledge, artistic appreciation ability and language expression ability. I will finish this lesson in two hours. The first lesson is to guide students into the world of dinosaur disease and share dinosaur knowledge (individual size, living environment, eating habits, etc.). ), and through the dinosaur model I brought, I observed the dinosaur body structure at close range, as well as the characteristics, skin color and texture of different dinosaurs and other art-related knowledge.

Guide students to boldly imagine and express the new dinosaurs they created and create them in an artistic way.

Teaching objectives: knowledge and skills: through the appreciation, exchange and discussion of dinosaur-related knowledge, we can enhance our objective understanding of dinosaurs.

Process and method: in the process of imagination and creation, cultivate creative thinking and improve modeling expression ability.

Emotion and attitude: experience the artistic pleasure brought by bold imagination and expression, and feel the art in the blend of ancient and reality.

Focus: Encourage students to boldly imagine new dinosaur species and express them in different artistic forms.

Difficulties: Guide students to observe and describe dinosaurs from an artistic point of view.

Teaching process: first, uncover the topic 1, video import, uncover the topic.

Teacher: Hello, members of the dear little scientist tour group. I am the tour guide of this time-travel tour group. Do you know that?/You know what? Do you know that?/You know what? The earth on which we human beings depend has a history of about 4.6 billion years! The destination of our trip today is the earth from Triassic to Cretaceous about 240 million years ago. Is it far from us now? I call it "ancient". In this long historical process, there is a period that is the most striking in the history of the earth. At that time, humans had not appeared, and of course there were no buildings. The dense green forest is endless, and a mysterious reptile appears in the lush forest. (Playing video) They were the overlords of the earth at that time. What are they? Health: Dinosaur (blackboard writing) 2. Know the dinosaur teacher: Now we have reached the "Mesozoic era" in which dinosaurs lived. Triassic, Jurassic and Cretaceous, respectively. Dinosaurs existed for about 65.438 billion years! Among them, Jurassic was the golden age of dinosaurs, and Cretaceous was the peak of dinosaur species. ) Teacher: Dinosaur friends are around you. Please take them out of your desk.

Health:. . . . . .

Teacher: I will leave the following time to the young scientists present. Please combine the information you have collected with the dinosaurs in your hand to hold a seminar. Please press 1. Appearance characteristics (size, weight, body structure) The dinosaur body is divided into head, neck, trunk, tail, limbs, skin color and texture) 2. Living habits (land, sea, flying, crawling, eating meat, eating grass, living in groups, etc. ) 3. Appearance and personality characteristics (boldly guess whether these characteristics are aggressive or gregarious)

Student: ... Teacher: (Show pictures and summarize in time) Third, imagine and describe boldly Teacher: We enjoyed so many pictures and videos about dinosaur disease. In fact, there is a very important task in your trip, which is to open Jurassic Park for our planet and create new dinosaurs, such as Tyrannosaurus rex (video). What kind of dinosaurs can you imagine? Please tell me. Not only his appearance, but also his living environment and even a story.

Student: ... Teacher: The students' ideas are very good, so let me first look at how the children in the last tour group expressed their ideas in the form of paintings.

Guide students to analyze their own works and show the effect of dinosaur skin texture with oil-water separation system according to the painting method: the first one is the combination of crayons and water.

The second and third watercolor pens are simple to operate and bright in color, which is suitable for representing scenes where many dinosaurs are together.

Four or five pictures focus on a dinosaur, and take it as a close-up view, which accounts for most of the picture. Draw it first, and then draw the living environment behind it. The sixth and seventh pictures depict dinosaurs on light-colored paper, cut them out and pasted them on colored background paper. Pay attention to the use of lines and the rich use of points, lines and surfaces. The last two pictures are imaginative and have a sense of story. (4) Show the operation requirements, give guidance, and show the works in time.

Verb (abbreviation of verb) Appraiser: Thank you for coming and inventing. Please post your work in Jurassic Park. And invited students to come to the stage to tell everyone about his fear of dragons and interesting scenes. Sixth, promotion

Top Ten Most Fierce Dinosaurs in Prehistory _ The Amazing Relationship between Ancient Giants and Dinosaurs (Figure)

The amazing relationship between ancient giants and dinosaurs (Figure) Tinayero immediately led the team to work enthusiastically. From 1944 to 1952, they excavated 33,500 sculptures in the southwest of this remote town and gave them to Jules Lute for a fee. When the businessman began to appreciate these ancient sculptures carefully, he was shocked: in addition to all kinds of statues similar to Europeans or Eskimos, there were many "monsters" running and playing, including various dinosaur shapes.

Soon, many archaeologists came here, but when they saw these pottery works of art, many people couldn't help feeling gloomy: many animal models were actually dinosaurs, and there were scenes of giants riding giant dinosaurs, including women feeding small dinosaurs. For these modern scientists who generally believed in evolution at that time, this was a joke! Everyone knows that dinosaurs died out as early as tens of millions of years ago, and according to the viewpoint of evolution, the history of human beings will certainly not exceed 10 thousand years. How can they live in the same era as dinosaurs? These scientists were puzzled and gave up further research on it.

However, in 1954, the National Institute of Anthropology and History sent four archaeologists to the excavation site for investigation. The Mexican expert group headed by Dr. Noguera admitted in the internal report that the excavation process was completely normal, but if we really want to say that humans and dinosaurs existed at the same time, they think it is a bit bizarre and can't be explained, so they have reservations about it.

However, the archaeologist Professor Hapgood has a different view. Later, he spent his whole life studying these strange statues and visited this site many times. After confirming that the statue was not forged by modern people, he firmly believed that the truth of history was hidden behind the statue and began to look for more samples.

The serious archaeologist got the support of the local police chief, who readily agreed to let him dig anywhere he thought necessary.

Archaeologists immediately took the workers to work and excavated a large number of collections in some seemingly impossible places. Finally, even under the floor of the police chief's office, many statues with the same artistic style were unearthed there.

The house of the police station was built 25 years ago, which also shows that the statue has been buried in the soil for many years, not forged by the discoverer, and the local natives do not know what a dinosaur is.

1968, the professor of archaeology sent a piece of organic matter from Jules Lute, a businessman, to an expert in the isotope laboratory, and dated it with the carbon method of 14. Experts say that the identification result is that these materials are about 6500 years ago.

A few years later, the American magazine Information also reported the mystery of the magical statue of Akambalo, and mentioned that the Center for Archaeological Applied Science of the University of Pennsylvania conducted thermoluminescence dating on four samples submitted for inspection. After 18 tests, scientists were puzzled and finally announced that the age of the statue must be more than 4,000 years ago.

At that time, if someone wanted to ask archaeologists questions about the statue of Akambalo, almost every expert would angrily refuse to answer. Therefore, some researchers can only conceal the source of the statue to determine its age. 1995, the geological dating laboratory identified another statue sample as 4000 years ago. In the face of modern scientific and technological testing, almost every statue submitted for inspection has been tested, which proves that they were formed in ancient times and are by no means the works of modern people, leaving the skeptics speechless. But some scientists have raised the opposite question from another angle, that is, the statue may take longer to form. The reason is that the identification method of carbon 14 was invented in 1940, but it was proved unreliable in 1960. The increase of cosmic radiation, meteor rubbing against the atmosphere, sunspot explosion and volcanic eruption will increase the generation rate of carbon 14, thus shortening the dating age.

The longer the material age, the higher the error rate, and there are many limitations, and the subjective factors of testers are easily mixed. Including other determination methods, the technical method itself has limitations, and it is difficult to determine the true age of ancient artifacts. Dinosaurs died out as early as tens of millions of years ago, but thousands of statues of Akambalo show the scenes of human beings fighting with various monsters and living with various dinosaurs, and the shapes of various dinosaur statues are very consistent with the types of dinosaurs known by modern scientists, which are very realistic and not fantasy works.

In recent decades, scientists have discovered many incredible remains of prehistoric civilization. They found that as early as tens of thousands, hundreds of thousands, hundreds of thousands or even hundreds of millions of years ago, highly developed products of human civilization appeared on the earth, and some technologies far exceeded today's human technologies.

Coincidentally, in 1972, Ecuadorian archaeologists discovered the prehistoric "metal library" in the San Diego Tunnel, where they not only found books and animal models made of high-purity gold, humanoid stone carvings holding the sun and moon on a globe, temple models carved with portraits with guns and hats, but also exquisite stone carvings carved with giant dinosaurs. There are many hand-carved scenes of humans and dinosaurs on the famous Icarus stone carving in Peru, which shocked the world. 1976, geologists found ancient human footprints interlaced with the footprints of three-toed dinosaurs on the rocks of Pelesi River bed in Texas, USA. The human footprints in the dinosaur era were identified by many experts and finally confirmed to be true.

Nowadays, the new discoveries in archaeology and prehistoric civilization research have shaken the cornerstone of evolution. Many scientists infer that the most logical explanation is that the statue of Akambalo is the work of prehistoric people, just like the ancient stone carving of Ica in Peru. Prehistoric humans and dinosaurs once lived in the same era.