4.6 Billion Year Symphony of Evolution

In the spring, the warm light sprinkled the whole world, the ice and snow began to melt, the sea of ​​the canyon began to thaw, the plants began to restore greenness and youth, and everything recovered.

Then it is dead.

The low oxygen content has continued throughout the winter. Even in the spring when the plants are awake, there are no signs of improvement. Many creatures begin to wake up. Due to the temperature, their blood first accelerates and then the cells rejuvenate. The limbs also begin to move.

But during this period, because the lack of sufficient oxygen, the vitality just acquired disappeared instantly, the creature began to produce dizziness, the brain could not get enough oxygen, the limbs became weak, and the creature became panicked and feared. Occasionally, there are many phenomena such as vomiting. After a few hundred seconds, the heart of the creature stops beating and eventually dies.

Almost no living organisms need oxygen, even fungi and plants. This phenomenon has caused great damage to the organism, and it can not be called a disaster.

It is the same as the oxygen disaster that Lin had experienced a long time ago, but it was because of the oxygen, this time because of the less oxygen.

In the jungle where everything has recovered, echoing the screams and sorrows of creatures, hypoxia is a very painful thing. Some creatures will dig their own eyes because of madness, or bang their heads and then fall on them. On the ground, enter death.

There is only one place, and Lin calls it the 'Oxygen Fortress', in which the creatures can wake up normally and normal activities as before.

But most of those who are deficient in oxygen have not been able to get out of the sleeping nest they dug. They are so dead in their own nests. The state of death is quite horrible.

Lin's wind snowballs still float with the wind. Observing the tragedy over the jungle.

The air in the spring should have been quite lively, and countless cockroaches and swarms swarmed in the air to breed. There are no huge waves in the air, and they all die in their own nests.

This is a new disaster...

However, Lynn has completely avoided the disaster this time. This incident is really not a disaster for Lin. Even if the oxygen completely disappears, Lin can survive.

But for other creatures, this is a huge destruction. After a few nights and nights, the smell of carrion began to spread in the jungle. The fungus has begun to break down the bodies of these creatures. Although the bacteria also need oxygen, they need very low levels. Now they are almost the same thing.

The reason for the lack of oxygen has been thought of many possibilities. The speed of this reduction is indeed very abnormal, but it is not important. Even if oxygen is restored, these dead creatures cannot be revived.

But Lin always felt that the fungus couldn't be related to it all. Now, with the arrival of spring. The fungus began to climb out of the surface to decompose a large number of dead bodies that died from hypoxia.

After all, only fungi are new creatures, and everything else has been maintained for quite some time. Perhaps it is really fungi that caused this destruction.

However, although it is devastating, it is a new life for some creatures.

That is the reptile class.

Oxygen did not completely disappear, but only a certain amount was reduced, so almost all of the dead creatures died because of lack of oxygen.

In fact, more than 95% of the species that occupy the jungle are arthropods. Some of them can grow to a particularly large body shape, but the arthropods acquire oxygen through a stomata that is scattered throughout the body. If the oxygen content is reduced, they will Oxygen is not available normally, and awakening in the spring requires a lot of oxygen, but they cause death.

The reptiles have an organ called 'lung' that actively extracts a large amount of air to obtain oxygen, so they only feel uncomfortable even when the oxygen content is low, but they do not die and can adapt quickly. In the current situation, some reptiles have come out to find food.

The food now... is everywhere.

Creeping can be said to be a kind of 'bottom' tiny creatures, which usually play the role of 'arthropods', they have been fleeing in the jungle, they are small and can grow as large as a scale lizard. There are only a few, but they can use these giant monsters as food this time.

How do they feel? Will it be incredible? But the current downturn is the focus for them.

In addition, the brain worms are also part of the arthropods. They evolved from some kind of thing, but it has no problem. Its huge head needs a lot of oxygen, so it has a similar ability to 'lung'. .

It has no lungs in the body, but it has a small unit. Lin actually discovered that it was a unit of arms. It was originally thought to be the long organ of the brainworm, and the micro-arms were called 'oxygen balls'. They were like a ball. , a large number of stomata in the brain worms, they will act like lungs, inhaling a large amount of oxygen to the brain worm, and they do not need 'Queen' to breed, they will proliferate or reduce according to the physical condition of the brain worm, Therefore, the effect of hypoxia on brain worms is very small.

There are such arms in the stomata of other arms of the brain worm, so there is no big problem.

Sure enough, there are some ways to divide the types of plants. Because of the division of labor, they usually can cope with the situation that various monomeric organisms cannot cope with.

But Lin didn't know how the Inca swarms were. I don't think they have such arms, and they don't know if there is any oxygen reduction in the places where they go.

Let's take a look at this later, and Lin thinks that they are easy to have a solution.

Aztec worms are also not available. Maybe they will have some problems. As far as Lin knows, Montezuma II is still alive, but the large insects of the deep sand bus may not survive.

Then, Lin observed the water creatures in the canyon. Lin found that the reduction of oxygen had little effect on the sea creatures, including the marine arthropods. The marine arthropods did not use stomata but breathed with sputum. Nothing changed, the special creatures of the ancient scorpion hid in underground caves in the winter, and now they are flooding again.

Around ten days and nights after the arrival of spring, almost 99% of large arthropods died under Lin's statistics, but the small ones were basically unaffected.

In addition, a large number of reptiles have lost their natural enemies, they stand in front of a new jungle...

What kind of changes will these creatures produce? (To be continued, please search for astronomical literature, the novel is better updated faster!

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