Chapter 285: Sea creatures that have existed for 500 million years
In ancient times, the distribution of the earth's continental plates was different from what it is now.
Maybe today's sea was a mulberry field hundreds of millions of years ago, or maybe today's mountains were a plain hundreds of millions of years ago.
During the ancient orogeny period, the relative motion of the earth's major plates caused compression and collision, causing some areas to sink and other areas to rise.
The sinking areas became oceans, and the rising areas became mountains. The fossil remains of ancient creatures also appeared in different areas.
On the high mountains lined with boulders, you may find the remains of ancient trilobites, stone chrysanthemums and other organisms, and deep in the coal seams covered by soil, you may also find fossils of organisms such as shells and conches from prehistoric times.
What Lin Shuhang discovered in the coal seam was not another creature, but a tooth of a marine creature—the tooth of a prehistoric giant shark.
If time is like a one-step movie and you can fast forward, you will be surprised to find that hundreds of millions of years ago, there was a vast forest here.
The giant trees in the forest are towering into the sky, and various plants are as numerous as the stars in the sky. After generations of plants, they accumulate on the ground after death, turning into peat material and slowly seeping into the depths of the ground. After high temperature and pressure in the ground, and long geological evolution, finally
It became today's oil and coal.
Again, if time is a movie and you can fast forward, then fast forward hundreds of millions of years, you will be shocked to find that the original land has disappeared and this place has become an endless ancient ocean.
All kinds of magical marine creatures lived in the ancient ocean. They lived here for hundreds of millions of years. After their death, their bodies were buried in the sand on the seabed, accumulating layer by layer over time.
Later, the earth ushered in a large-scale mountain building movement.
During the long orogeny, the earth's landscape has undergone earth-shaking changes.
With the large-scale movement of the earth's crust, the earth's continental plates continue to squeeze and collide under huge pressure, causing this area to become a vast plain.
Later, there were forests on the plains, and the plants in the forests died and became oil and coal underground. It was not surprising that the prehistoric giant shark tooth buried in the coal was discovered by Lin Shuhang.
When Lin Shuhang pointed the giant shark tooth in his hand at the live broadcast camera, everyone gasped.
"Damn it, am I not dazzled?"
After seeing the huge shark tooth fossil, bursts of exclamations erupted in the live broadcast room, and the situation immediately exploded.
"These look like the teeth of a sea creature!"
"Yes, this is indeed the tooth of a marine creature!" Someone said excitedly: "This is the fossil tooth of a prehistoric giant shark!"
"Oh my God, I've never seen such huge shark teeth!"
"Fossil teeth of a prehistoric giant shark?" Lin Shuhang looked at the live broadcast camera with a confused look on his face and said, "Are you sure you're not mistaken?"
"Old man, are you kidding me?"
"There is absolutely no mistake!"
The man said with great certainty: "I am a biology teacher at Tsinghua University. I have studied biology for decades and have made some achievements. I am sure that this is the tooth fossil of a prehistoric giant shark!"
"But..." Lin Shuhang asked in disbelief: "Don't all sharks live in the ocean? I found this tooth in the coal seam."
"It can be seen that you were not a good student when you were in school."
The man smiled and said: "Because a top student would not ask such an idiotic question."
"Um..." Lin Shuhang said awkwardly: "To be honest, I was really a scumbag when I was in school, but I think I am not the only one who has doubts about this incredible phenomenon, right?"
"Yeah, I don't understand why the teeth of creatures living in the ocean appear in underground coal seams." Some viewers echoed: "This phenomenon is really strange."
"Do you think that before this coal mine was formed, a huge tornado blew up in the ocean, and that tornado blew this tooth here?"
"Why didn't you say that someone accidentally traveled to before the formation of coal and left his shark tooth necklace in the coal formation area?"
"Hahaha, it's possible. However, the biggest reason is due to the large-scale orogeny of the earth." A professional gave an explanation, and the person explained: "As we all know, the earth has experienced many large-scale orogenies across the globe in the past.
, during the orogeny, the crustal plates collided and squeezed each other, countless oceans became land, and countless land also became oceans. In this case, let alone the tooth fossils of marine organisms found in coal seams, it was in the ocean, too.
The remains of corpses of land creatures can be found.”
"Isn't this shark tooth too huge?"
"Yes, it's over two meters long and three meters wide. It probably weighs four to five hundred kilograms, right?"
Lin Shuhang took the giant tooth and weighed it in his hand: "More than that, it feels like it weighs half a ton."
"Damn it, a tooth weighs half a ton? It completely subverts my outlook!"
"With such a huge tooth, its owner must have been a giant."
"Yes!" someone said: "The owner of this tooth is at least as big as a nuclear submarine, right?"
Looking at the giant tooth that was more than two meters long, people in the live broadcast room were shocked again and again.
"Incredible! It's incredible!"
"Shock value +10000!"
"Shock value +50000!"
"Shock value +80000!"
"Shock value +120000!"
"Shock value +360000!"
"Shock value +690000!"
"Shock value +1,700,000!"
"Shock value +5600000!"
"Shock value +9800000!"
"Shock value +10000000!"
…
Sharks live in the ocean and are known as "wolves of the sea". They are the top life hunters in the ocean.
This kind of creature has a longer history than the dinosaurs. When they appeared on the earth, the dinosaurs would not be born until 300 million years later. They have already existed on the earth for 500 million years.
Unlike the teeth of other creatures, most creatures only have one row of teeth in their mouths, but sharks have 5 to 6 rows of teeth in their mouths.
These teeth are like tiles on a roof, stacked on top of each other and covering each other.
Once the outermost teeth are lost, the back teeth will move forward to replace the lost teeth. Therefore, a shark often needs to replace tens of thousands of teeth during its lifetime.
The reason why this ferocious marine creature replaces its teeth so frequently is closely related to their living habits.
As we all know, sharks are the top "ocean killers". They have very powerful bites and have sharp teeth. They often prey on large fish in the ocean and use their teeth very frequently.
Someone once used a metal bite force to test the bite force of an 8-foot-long shark. The test results were mind-numbing. The bite force of this creature was as high as 18 tons per square inch! It can be said that it is the largest shark of the same size.
There is no creature with the most powerful bite force!
There are also records showing that some ships have recorded in their sailing diaries that a huge ship's propeller was bent by a shark and a hole was bitten in the hull of the ship.
Lin Shuhang dug out such a huge shark tooth from the coal seam. It can be said that he found a treasure!
But he also had a question in his mind: What kind of shark tooth is this huge tooth weighing more than half a ton?
As an ancient creature that has existed on the earth for 500 million years, there are many types of sharks, and their teeth are also in various shapes.
Some sharks have razor-like teeth that can be used to cut food;
Some sharks have serrated teeth that can be used to tear food;
Some sharks have flat molar-shaped teeth that can be used to crush food shells and bones.
For example, the teeth of the man-eating shark have finely serrated edges and are triangular in shape;
The teeth of the blue shark are like knives, huge and sharp;
Although the whale shark has a huge body, its teeth are as short and thin as needles;
The teeth of the cone-toothed shark are elongated and cone-shaped;
The teeth of tiger sharks are wide and mortar-shaped, etc...
Lin Shuhang had always lived on land and didn't know much about marine life. He didn't know what kind of shark tooth this was.
However, his curiosity was extremely strong. In order to know which kind of shark tooth it was, he turned to the spectators outside the venue for help.
"Hey guys, can anyone help me find out what kind of shark tooth this is?"
Due to the special nature of the giant live broadcast system, Lin Shuhang has the powerful privilege of being able to forcefully connect to the earth. With billions of fans, he is known as the most awesome and domineering outdoor anchor in history!
No matter who you are, even if you are a political dignitary, a high-ranking military official, or even the president of the country, as long as you use network equipment, without exception, you will be forced to receive Lin Shuhang's prehistoric live broadcast.
Among these billions of off-site spectators, there are great masters from all walks of life.
Soon, someone identified it as a tooth from a prehistoric megalodon!