The fertility rate of any species in the interstellar is very low, except for the tenacious Zerg that "wildfires can't burn inexhaustibly, and the spring breeze blows and grows", like a tenacious Zerg that can't be killed.

They reproduce quickly, and under the right environmental conditions, the population can even grow in a "blowout".

Even with the development of interstellar medical technology, diseases closely related to "genes" are still a subject with a long way to go.

I don't know if it is related to the existence of various known and unknown radiation in the universe, or maybe it is the change of living habits such as eating habits, in the long years, the appearance characteristics of the interstellar people in some galaxies have changed, and Mars has seen all kinds of interstellar people of different forms when he was "on the expedition" in the interstellar world.

Most of them still retain the basic "human" form, with a head, torso and limbs, and the appearance has changed greatly, mainly facial features, skin and height.

At this time, Mars was pointing to a picture of an alien that looked like a "dwarf" in his optical brain folder, and introduced it to the space trainers who were enthusiastic about "listening" to him.

“…… This is the M89 galaxy Golden Star people, the Golden Star is rich in gold, so named, each of these little gnomes is a natural gold digger, and also one of the 'pets' of those interstellar nobles. ”

In the picture, a group of "dwarfs" about thirty or forty centimeters in size are looking blankly at the camera, and compared to their "immature" bodies, their oversized heads appear to be top-heavy, looking like malnourished big-headed dolls.

Let everyone who saw the picture sigh in their hearts.

"This picture is the official nursery center on the Blue Earth Star, where the germ cells provided by both men and women are fused, fertilized, and further cultivated into embryos through an 'incubator' until they mature ......."

"Why? Is it because in interstellar life, women's bodies have been worn out and cannot bear the function of gestation? ”

A United Nations raised his hand and asked.

"Well, it's not all. The interstellar environment is complex, and there are many unknown substances that we don't know about quietly changing our physical fitness...... And after finally giving birth to a new life, it may die due to various diseases, and over time, the interstellar people want to collectively rot, but later the official found out that something was wrong, intervened in time, and set up a 'conservation center', which saved a little of the interstellar fertility rate that was already in danger. ”

Because of the difficulty of seeing interstellar offspring, Mars is full of curiosity about the huge number of human races bustling on Earth, and the flora and fauna that can be found everywhere.

In particular, I am very interested in the lively "big families" on the earth that have lived together for several generations and as family units.

He had never experienced the feeling of "home", but just thinking about it made him feel very fresh.

In the interstellar, people rarely have "brothers and sisters", which are rare special existences.

And he has a mother, but he is like an "orphan".

But on Earth, Mars felt that he had many brothers, as well as many sisters and sisters.

He already regarded himself as a member of the earth, Blue Earth, and for him now, he was just an emotionally indifferent and alienated "manufacturer".

(End of chapter)