Two million years after the disaster, the cold weather has passed and magma is no longer erupting, but almost all signs of life on Earth have disappeared. It will take hundreds of thousands of years for the earth to return to its previous life, and almost all animals in the ocean will disappear. The super mantle event was the longest-lasting natural disaster in the history of the earth. It was so severe that all living things on the earth were reduced to desolation. It caused 75% of the living creatures at that time to disappear forever, including the top predator Dunkleosteus. Including all placoderms. Attenborough, the first viviparous vertebrate, the ancestors of terrestrial vertebrates, the Eupalon and Tiktaalik, and all the cephalothorax were extinct in this catastrophe. In the midst of this disaster, there was a remarkable evolution, the first vertebrate animal to walk on land, Tiktaalik. Although Tiktaalik is extinct, one of their species evolved into a more advanced species, Ichthyostega. Ichthyostega is the ancestor of all four-legged vertebrates, including humans, and they quickly replaced arthropods as the dominant land animals. At this time, the earth seemed to have entered a deep sleep period. Unexpectedly, when I woke up and opened my hazy eyes, I saw a large forest with a warm, humid climate and swamps everywhere. We saw this spectacular fern forest, stone pines, true ferns, and seed ferns also beginning to develop rapidly. The Kodak tree among gymnosperms is a tall tree. Listen to the patter of rain, this rain! The long rainy season lasted for several months. The rain hit the leaves one after another, falling into water droplets and soaking into the soil.
The earth began to enter the Carboniferous Period again. From 358 million to 298 million years ago, the Carboniferous period was also the period of most frequent crustal movements. Mountain systems and land were formed, and the terrain was undulating, giving the earth a distinct climate. Differentiation.
Deep in the jungle, there was the sound of trembling long wings, and then a dragonfly flew out from the jungle. It shuttled back and forth, passing through jungles one after another. It could fly at a speed of 60 kilometers, becoming a dragonfly in the jungle. overlord. The largest dragonfly was only 18 centimeters, with a wingspan of up to 95 centimeters. At that time, it was called the giant-veined dragonfly. It hovers in the sky and flies, or falls into the water or flutters its wings high, flying very far away in a flash.
Above the ground, there is a covering of fallen leaves. The tall trees, with their extended branches and leaves, can block out the sky and the sun. The jungle seems a bit darker because it is difficult for light to shine through the lush branches and leaves. When night falls, the giant spider pokes out of the cave and spins silk from its tail to form a spider web to detect movement outside the cave. Giant spiders belong to the suborder Mesothena and are as big as a human head. Under the cover of night, he walked through the weeds, and then leaned out of the weeds, watching every move outside. If he encountered a threat from a huge animal, he immediately fled and disappeared into the weeds. I put up a huge spider web in front of the cave to see if those insects hit the web. At this time, the huge spider silk web vibrated frequently. With this violent vibration accompanied by buzzing or the sound of vibrating wings, the giant spiders sensed that food had hit the door and crawled out of the cave one after another. The mosquitoes at that time were quite huge. They lived by landing on giant creatures and sucking blood. They were no different from modern mosquitoes.
The only difference is that the oxygen content of the earth at that time was quite rich. Not only were the plants quite tall, they could also be described as towering. There were patches of rainforests that covered 30% of the earth’s continents. And in this vast sea, mountain building movements occur frequently, and uplifted islands are scattered in the vast sea. The ferns on the island are even more lush. But most creatures live on this Pangea continent. They compete with each other and follow the laws of nature. In a cruel competition in which the fittest survive and the unfit perish, the giant spider crawls out of the cave and begins to collect its web, spitting out spider silk to drag the captured prey into the cave, sharing the fruits of its day's hard work with the tribe.
We peered out of the forest and looked up into the sky. The sky was suddenly covered with dark clouds, lightning flashed through the rolling clouds, and thunder roared like a chariot rolling from a distance, as if the sky was experiencing a battle, a fierce battle, and thunder roared. A bolt of lightning struck and spread in the thick clouds, forming a column of electric current. This strike burned a towering tree, and a fire suddenly broke out, spreading with the wind and forming an unstoppable trend. . Thunder resounded throughout the sky, like the sound of artillery exploding. Lightning lit up the dark sky like daylight. The forest was filled with thick smoke and engulfed in flames. A blast of thunder seemed to explode the hazy sky, and heavy rain fell, extinguishing the fire, and the smoke filled the entire forest. Then we zoomed in, through the smoke, through the jungle, and placed on the land scorched by the fire. The corpses of giant creatures scattered here were also burned to black charcoal by the fire. Or their size is too huge and not as petite as giant spiders. When disaster strikes, they hide in caves and successfully escape the tragedy caused by this disaster.
On the earth, covered with dead branches and leaves, young shoots emerge from the ground. The earth quickly regains its former vitality. At this time, we can sum it up in one word: vigorous. Within a month, they grew into towering trees one after another, with their lush branches and leaves spreading out to cover the sky and the sun. Then there was a click of dead branches being trampled, and a giant scorpion crawled out of the jungle.
The original water scorpion salamander, about 2.5 meters long, is a huge prehistoric amphibian and reptile. It is very suitable for living in the bad environment of swamps. It is one of the top predators in prehistory and can forage on land and in water. , with strong jaws and sharp teeth for handling large prey. The scorpion crawled out and looked around, paying attention to the surrounding movements at all times. After feeling absolutely safe, he enjoyed the delicious food alone. Looking at these corpses charred by the fire, it was really delicious! I couldn't resist the temptation of delicious food and started eating.
While it was enjoying the delicious food, a giant centipede was hidden in the forest, among which the millipede was the most representative. It belongs to the class Myriapod, about three meters long, wearing hard armor and having sharp jaws. It is the largest land arthropod in history. Strutting out of the jungle, the scorpion salamander felt that danger was approaching it and hurried up. Its huge mouth expanded and its sharp fangs were exposed. Its hissing sound was quite harsh, as if to demonstrate to them that they would not dare to approach. The millipede erects its long body, a full meter high, ready to attack at any time, and attacks with its sharp jaws. The scorpion salamander avoided it very quickly and cut its throat with its long mouth. It was entangled in the long body of the millipede and stung its body. The scorpion kept cutting its throat until the millipede gradually let go and pinned the millipede to the ground. The scorpion salamander grabbed its long body with one claw, making it unable to move. The millipede quickly gained the upper hand. Many millipedes came out in pairs and joined in the hand-to-hand fight, and the scorpion relented. Facing these numerous millipedes, there must be a large number of insects. The scorpion was forced back, opened its mouth to demonstrate to them, and then fled.
The millipede injects venom into its body when it bites. Perhaps the venom spreads within its body, or it may be that it was seriously injured and collapsed on the edge of the pool due to exhaustion, and was eaten by the salamanders that rushed up first. At that time, there were also giant unicorns, giant cockroaches, etc. Soon, the Carboniferous Period entered its late stage.
The culprit of this disaster is coal. For 100 million years, the land has been completely covered by forests, and their dead branches have formed a layer of coal more than 30 meters thick, which is spread all over the world. At that time, the magma activity in the mantle layer was intense and produced high temperatures. The high temperature passes through the rock layer and reaches the coal layer, and the coal burns at the high temperature. One day 306 million years ago, thick smoke billowed over the earth, filling the entire sky, igniting trees, and suddenly turned into a sea of fire. The extremely high oxygen content accelerated the spread of the fire, turning the entire sky red. The fire spread to more than 500 meters away within a few days, making a crackling sound. Those giant creatures in the jungle were No place to hide. Some insects such as giant dragonflies can still fly in the air to avoid this fire, but the eggs they lay are unlikely to survive. The insects lose their habitat and fall due to exhaustion while flying in the air. Into the sea of fire. Ten years later, the fires continued to burn, covering fifty percent of the land and killing most of the life within them. Due to the obstruction of mountains and rivers, the fire did not continue to spread, but the burning of coal produced a large amount of harmful gases, which gradually spread around the world. These gases caused a global greenhouse effect. The average temperature rose to 5 degrees Celsius within ten years, causing the oceans to Animal eggs cannot hatch. Thirty years later, the fire ceased burning as all combustible material had been burned. In the area where the fire burned, there was a thick layer of ash, which was formed after the animals were burned. The surviving animals had no source of food and quickly starved to death. The atmosphere is full of harmful gases, which in turn destroy many animals with poor respiratory functions. These gases continue to increase global temperatures. More than a hundred years after the disaster, global temperatures averaged as high as 30 degrees Celsius. A thousand years later, toxic gases continue to evaporate, blocking the sun. The light source received by the earth's surface is only 50% of the normal. This makes the plants on the earth unable to carry out photosynthesis, causing a large number of deaths and causing The salamander cannot escape either. Ten thousand years later, the toxic gases finally stopped evaporating, but animals and plants were severely damaged. Fifty percent of the land showed almost no signs of life, and the earth began to enter a period of slow recovery.
