How rare is it to have a complete and complex ecosystem that is completely dependent on nature?

First of all, it is important to establish that habitable planets are not the same as planets with complete and complex ecosystems, and that the two are in a relationship of inclusion and inclusion.

The habitable planet standard of humans and Serens is only suitable for life, even if it is only a single-celled bacterium.

As long as this is satisfied, the terrestrial planet can be considered habitable, even if it is only a satellite, and this designation will not change.

And this kind of scope is a very broad category, suitable for the survival of life and the birth of life are two concepts.

Indeed, under the agitation of the wind current, matter will move, coupled with the baptism of thunder and lightning, inorganic matter can obtain the possibility of synthesizing organic matter in the natural environment, and in these organic matter, amino acids, the basic unit of carbon-based life, will also exist.

But many habitable planets actually stop there, and they don't have the ability to give birth to life, or they haven't had time to give birth to life, and making a bunch of complex materials into genes is no less than raising a handful of sand, and the sand spontaneously assembles into a smartphone in the wind.

It's not impossible, it's that the probability is pitifully small.

Therefore, it takes millions of years, tens of millions of years, hundreds of millions of years, and even when the universe dies, this process has not been completed, because the chaotic system of nature is completely random, especially in the case of the unknown probability of the birth of this life, the ghost knows why the lottery number will be the string of numbers is the jackpot, a truth.

Even if combined, it may dissipate the fluctuation of water current, which may be caused by a breeze, or it can be a free ion on the microscopic scale, so that the basic units of life that have just been combined are broken up again, and sometimes, the loss of life on a planet is so arbitrary.

Life on the planet that has passed through the stage of rebirth from death may develop into macrolife, or it may stay in the microbial stage forever, and if the habitable planet that gave birth to them does not provide them with enough pressure to survive, the latter is more likely.

Then there is multicellularity, and the development of multicellular life on the surface of the planet will develop to the macroscopic scale, which is an inevitable result, because they themselves have such a basis, in the fierce race for survival, multicellular organisms will eventually crush single-celled organisms in size.

However, multicellular organisms do not necessarily evolve into mammals, and it is entirely possible that an entire planet should be planted by plants, and the Earth has had such a stage that it is clear that such a planet cannot be regarded as a complex and stable ecosystem by the collectors.

A mature and stable ecosystem includes three categories: producers, consumers, and decomposers, and the more species they have, the more stable and fault-tolerant the ecosystem is, and the extinction of a species will not trigger a chain reaction, which is the case.

Since the gatherers stepped out of their own star system, there have been tens of thousands of colonized stars, but none of the more than a dozen habitable planets found in these star systems has a complex and stable ecosystem, and the best ecosystem has evolved plants such as moss lichens, and this plant is the epic creature of that planet, the absolute king before the arrival of the gatherers.

This is enough to show how rare a planet with a complex ecosystem is.

A small jet of gamma rays, he first went to the terrestrial planet in the same family.

The sub-light organism is docked to the gimbal that has been built, and it reaches the surface through the rhizome that connects the gimbal to the planet's surface.

Burst!

At the beginning, it broke out of the cocoon as a collector and hatched from the ground base of the gimbal creature, and several collectors were already waiting there.

Chu looked around, the pedestal was on a grassland, everywhere was emerald green grass, as far as the eye could see, a green scene, extending to the horizon of the sky, showing a slight arc.

The breeze blows through the meadow, and the grass that sways with the wind ripples, giving the impression that this is not land, but more like being in the middle of an ocean.

"Doesn't it mean that the biosphere structure of this terrestrial planet is complicated? Why, I can't see anything but some low-level plants. ”

At first strange inquiries, the gatherers answered.

"This location has been cleared by us, so it is now, and in the beginning there were a lot of large animals, and there were many aggressive predators."

"Take me to see it, I need to assess the value of this planet to the race, so we can decide that there is no need for this planet to survive."

"Okay, come with us."

Gatherers are creatures that pursue efficiency, so there is no façade culture, and they directly lead the way to a place.

After some time, the grassland came to an end, and the gatherers entered a dense forest.

They don't walk very fast, because they have to observe their surroundings, that is, the planet's ecosystem, and if they are just in a hurry, they can reach their destination in a few minutes with the gatherer's own maneuvering ability.

"The plants are very lush, and there are many aggressive plants, which is very rare."

At the beginning, while walking, he observed his surroundings, and occasionally stretched out his tentacles to pick the fruits, leaves, and branches of some plants and eat them.

But it's not just a matter of getting the genes of the plant so that you can better understand the organisms in front of you.

"But why are there no animals? Didn't you say that the planet's biosphere is complex? If it's complicated, there should be a move? ”

When it suddenly stopped, it felt something strange in its body, and something was eaten into its body along with the fruits of these plants.

The other party is an animal, and this can be determined at the beginning, because plants do not have such strong subjective initiative.

This animal is a parasitic organism, and after eating part of its flesh and blood, it began to lay eggs in its body, intending to use Chu as a ** container.

Ordinary creatures may really have no way to do it, because it is in the body, but unfortunately this time it encountered hard bones, and as a gatherer, Chu did not eat this set.

"Ahh

After a simple operation of the organic matter in the body, the object wrapped in a mass of concentrated hydrochloric acid was spit out, and together with the eggs, the area with a radius of two decimeters was corroded by the hydrochloric acid that was spit out.

The Gatherers, an alien species, have fully demonstrated their danger to the planet.

"Surprise, huh? A cunning animal like this has not been encountered in so long as the population has expanded. The gatherer who led the way asked.

"It's really unexpected, is there anything else? It can't be just like that, right? ”

At the beginning of life, the field of life emerges with interested mood swings.

"There are many types, and this is just one of many."