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In a small canyon around the highlands, there is a karst cave with a diameter of about 45 meters on the cliff. It used to be one of the tunnels where volcanic magma flowed, but no magma has flowed from here for more than 2 billion years.

This planet is not a forbidden zone for life as humans know it. The extremely harsh environment and atmospheric structure on the surface of the planet is indeed a forbidden area for life, but this is limited to the surface.

When the volcanoes everywhere on Mars died gradually, the magma receded, and the tunnels inside the volcanoes became the last safe haven for life on this planet.

A creature with a history of more than 2 billion years has survived on this planet, and it is also the only large-scale creature left on this planet.

In the cave channel where the small canyon is located, it is advancing at a speed that is neither fast nor slow. This is seen by human eyes, but in fact it moves very slowly. It is also a failed competitor. He failed in the competition for mating rights, and was lucky to escape the blood of his opponent. Now it has become an ascetic monk. He escaped from the lair deep in the ground. It is covered with scars all over its body.

After leaving the water, for the oxygen the body needs, it starts to consume its own water to produce the oxygen it needs. This is undoubtedly a slow suicide, but it is also the best way at present.

It is already a miracle to be able to come here alive, because for creatures in this population, failure from the competition for mating rights often means that they will become the winner's feast, especially in a bad environment where Mars does not grow, which is the most A rare meal.

For the only remaining species on Mars, this is not just a competition for mating rights, but also a contest of life and death. The winner will mate with the female and get everything of the loser, including her body, while the loser will get It is nothing, and even the body has to be the food of the winner. This is the cruelest competition.

It was a miracle that it escaped.

At this moment, it crawled to a steep slope, and the other end after the top was a steep slope with an inclination of up to 60 degrees. Such a steep slope is not a serious problem for this kind of creature, but it is an exception. It was injured too badly. The breath is getting weaker and weaker, and what is waiting for it is the coming of the god of death. It cannot safely pass through the steep slope of the cave.

But it has to move forward. When it crosses the top of the cave, its whole body accidentally slides down like a rolling stone in the steep cave. Its body can curl up into a sphere to protect itself, and it rolls madly in the cave and dies. Down.

Pezos highlands, outside the canyon, at the mouth of the cave, it rolled out from the inside, fell outside the canyon, and was also exposed on the surface of Mars.

Exposed to the sun, it will die

It suddenly let out a heart-piercing scream. However, due to the thin atmosphere on the surface of Mars, the propagation length of sound is only 15 times that of Earth.

The thin atmosphere on the surface of Mars has almost no oxygen. This species can adapt and survive. It has lasted for hundreds of millions of years in this world known as the forbidden zone of life. This species has lived deep underground for hundreds of millions of years. It is extremely deadly cosmic rays.

The Pezos area is about to enter the night, but at dusk, the sun still shines on this land, and the ultraviolet rays and various cosmic rays from outer space can still make it die without a burial. The instinct of survival makes it struggle crazily, quickly It wants to escape from this place, which is the opposite of dying before, but it doesn't know that there is nowhere to escape from the empty surface.

Its epidermis began to burn, fester and fester at a speed visible to the naked eye, and its muscle tissue began to turn into pus, which remained on the path it crawled on. When the pus touched the soil layer on the ground, white smoke suddenly appeared. The soil contained The traces of moisture began to be severely dehydrated, and the thin air was filled with a strong acidic corrosion smell

Finally, it was exhausted. It escaped from the competition of similar rivals, but it also failed to escape the final claim of death. It rolled down from the cave on the cliff to the surface of Mars,

It tried its best to climb a length of 80 meters, and finally stopped, the pus soaked into the surface soil layer, and finally only a pile of complete skeletons remained on the ground, white smoke permeated around it and quickly dissipated.

Go deep into the bottom of this extinct volcano along the cave entrance of the cliff. When entering the cave from the exit, you must first climb over a steep slope. The creature died because of this steep slope, and then went all the way deep into the ground. A criss-crossing underground network of caves appeared.

As it goes deeper, every inch is closer to the core of Mars, and a new cradle of life appears in the ground. The core of Mars is about 1700 degrees Celsius, and the temperature here has always maintained a stable temperature. In the ancient times of Mars In the era of the most intense and frequent volcanic activity, here is magma, but now it is composed of water. Keeping the right distance from the core of Mars, which has a high temperature of 1700 degrees Celsius, is just like the right distance between the earth and the sun in the solar system, so that the water on the earth can be liquefied.

There is a similar "habitable zone" in the subsurface of Mars, where water is liquid. In addition to this golden geographical location, the soil on the surface of Mars also has water components. If humans know all this, it may be able to explain the mystery of the source of water contained in the soil layer.

The golden geographical location allows water to liquefy here, and the underground space or intertwined corridors originally formed by volcanic magma also make it possible for water to converge.

This is the last habitat of life.

Deep underground in the Pezos area, there is a huge reservoir, but it is definitely not the only one on this planet. The area of ​​this reservoir is no less than Dongting Lake. Groups of reptiles gather at a port. These creatures are more than three times the size of adult Komodo dragons on Earth. They are reptiles. A single individual has more than 3,500 pieces of muscle tissue, while humans only have 600. Many pieces.

This kind of creature has no moving limbs, but crawls like a snake. There is a pair of forelimbs that are basically not used for moving and are more used for fighting. They are composed of three ligamentous joints, which can be straightened, but usually half. Contracted into an "s" shape, like the forelegs of a praying mantis on Earth.

What is incredible is that the air here actually contains a higher oxygen content than the atmosphere on the surface of Mars. Although this tiny oxygen content is impossible for humans to breathe, if it is discovered by humans, it will definitely cause a sensation in the world.

At this moment, these creatures on the port are intertwined with each other, and dazzling electric currents flicker on the surfaces of these creatures from time to time. The huge electric current generated here can kill an adult instantly, but for these creatures No harm done.

Because these currents are generated from these organisms.

The water here is also the most deadly venom for humans, because the water is full of strong acid corrosion, and the strong acidic substances in the water are also derived from these surviving Martian organisms.

There are no plants on Mars, but such organisms also need to respire. Oxygen is essential, but there is not enough oxygen on this planet for them to use.

But they can produce the oxygen needed for life activities by themselves, and the trace oxygen in the air also comes from them.

The reason why such organisms can independently generate strong electric current and acidic solution is because they have evolved a unique type of organ. This organ in the body produces oxygen to supply life activities through the process of "electrolysis of water", and this type of organism secretes The acidic solution in the water also serves this purpose. They can increase the concentration of ions in the water, thereby enhancing the conductivity, and thus speeding up the reaction rate to support the oxygen needed by the body.

Hundreds of millions of years of evolution have allowed this species to survive in harsh environments. However, the energy consumption required for such a large size is definitely not small. Don't look at them now "lingering" together in groups. If there is a chance, they will Eating the same kind without hesitation, swallowing a whole kind can satisfy a long-term activity. The harsh living environment makes them have to be cruel to survive, but this alone cannot make them continue to this day. Eating the same kind will one day There will be no one left to eat.

This is the last surviving Martian creature, which means that they have no source of food, and the thin oxygen on Mars is almost negligible, let alone supplying such a huge creature for respiration, and their huge body needs to consume a lot of energy. Oxygen maintains life activities. They produce oxygen by secreting strong acidic corrosion and electrolyzing water, but secreting acidic corrosion and providing electrical energy means consuming more body functions. Without food as a supplementary source of body energy, it is impossible to survive.

But even in such a harsh environment, they still have their own unique set of survival skills that humans have never heard of

To be continued To be continued.

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