Such creatures will be active in the "habitable zone" on Mars for a period of time, when the periodic mating and activity orgies are over, males and females will be on each side of the day, males will leave the "habitable zone" and migrate upwards along the cave, while females will stay in the "livable zone" forever.

Although this kind of only remaining Martian creatures are cruel and vicious, they will not hesitate to eat their own kind to gain more advantageous living space as soon as they have the opportunity, but they also exude the most praiseworthy and beautiful maternal brilliance of life.

The first mortal battle between males in order to mate rights, only the truly strong can survive and have everything at the end, in the process, the weak will die one by one, their bodies are the best food on the planet, on the grassy Mars, this is the most perfect delicacy.

After the First Death War, male creatures will start a second war for the ownership of these corpses, and a winner-take-all loser has nothing, and the massive number of corpses has given them sufficient food sources, and those who survive are really strong.

Females perform mating and are pregnant with the next generation, and the new generation inherits the genes of the strong parents, because the weak have no mating right at all.Pregnant females will be active in the Habitable Belt for an Earth month or so, during which time the "husband" obtained a large number of male corpses of the same kind to be able to meet the energy they need to eat to maintain their body function.

But at this time, "food" is too much, but can not eat to cause excess food, pregnant females have no time, because the baby in the arms will grow up day by day, the pregnant female creature will return to the bottom of the water, in order to complete the next generation to complete the new life and pay the ultimate sacrifice.

Like the giant octopus on Earth in the North Pacific Ocean, they are also the mother who made the greatest sacrifice on Mars to raise their children, and they can lay about 20 to 30 eggs at a time.Each pregnant female creature will find a nest in the bottom of the water, the "habitable zone" of Mars, the deeper the temperature of the Martian core, the higher the temperature, the higher the underwater temperature, is a natural living area, the pregnant female will choose the best area to settle its life, where the new life will be born.

The liquid water of Mars' "habitable zone" has very little oxygen, but it is still an oxygen-free water, which is in the volcano, and the water contains a large number of silicates and other substances, but these are not the biggest threat to small life, and the real threat is the oxygen-resistant anaerobic microorganisms in the water.

However, their mother has a way, the mother will secrete a solution of acidous corrosion that is fatal to non-similar organisms, and this liquid not only has the rate of accelerated oxygen manufacturing reaction, but also becomes the patron saint at the beginning of the birth of a small life.

The first four months of the growth of new life have no resistance, any external factors can make them die, the ultimate sacrifice of the mother is here, in order to grow up healthy, it must not step away from the nest, regularly release acid corrosion solution for small life umbrella, can not leave the nest means that the mother can not get food source, but also must secrete acid corrosion solution to protect the egg.Therefore, it is not surprising that the mother's body is getting weaker and weaker, and the acid corrosion secret is less and less, and it is good that over time, small life is thriving and the ability to resist external is increasing.

In this process, the mother will not have a food source, and no hibernation to reduce the consumption of physical function, will eventually starve and die, but its mission is not over, and there is a last-ditch dedication.

When its children are incubated, the mother’s body is the only food source for small lives, otherwise fragile young lives simply cannot survive.The female's huge body will not be decomposed in the short term, and there are no microorganisms, and acid corrosion plays the best preservation function here.Female carcasses can provide 20 or 30 new life for nearly 60 Earth days of consumption and complete the initial growth.

The new life has completed the initial growth, with enough ability to leave the hotbed of the deep water area, and after coming to the shore of the water, there are a large number of male corpses scattered here, and the former losers, the anaerobic environment and the acid corrosion that have been secreted protect the body from microbial cannibalization.The new life has gained a second source of food on the shore, and can complete the second growth and development with the help of the last "legacy" of the ancestors.

Three months later, the corpses on the shore were almost completely consumed by them, and the original new life had grown, the sudden reduction of food made them feel hungry for the first time, and they who were accustomed to the same kind of corpses, so they set their sights on the living, even their brothers and sisters, who saw the moving like they saw the taste of the world, and would absolutely put into practice for it.

Therefore, after they come into this world, they will start the first deadly struggle in their lives, in order to survive, during this period, part of the weak are therefore eliminated into the good food of the strong, the survival of the strong, no one can kill anyone, the final result of the killing is two defeats.

But survival will continue, in order to save from the future death of hunger, they have to find a new way of survival, one after another has left the "liveable belt", following the path of the ancestors to leave here, towards the colder areas above.

Find a safe undisturbed place, they curl the body into a spherical shape, with the use of acid corrosion solution in the rock wall or elsewhere to erode a grooves to prevent falling in the dormant period.So a long period of sleep, the rate of metabolism is getting lower and lower.They are gradually converted into anaerobic-resistant organisms, which means they no longer need to expend tremendous energy to make the oxygen the body needs, and during this period they no longer use oxygen as the ultimate electron recipient.

Over time, the surface of their bodies began to ferment, eventually wrapping the entire body.The next time they wake up, they will eat all the fermentation from the inside out to get energy supplements, replenish the hungry body and return to the "liveable belt", the fullest of food will have a good advantage, and when they arrive at the "liveable zone", they will have a greater advantage to beat their competitors, and everything that has acquired mating rights and losers has become the biggest winner in life.

In this cycle, this species has lasted for hundreds of millions of years on Mars, and after the great changes in the planet, one species has become extinct, and only this species has continued to become the last survivor, from the surface of Mars to the ground of Mars.