There is a fact in nature that occurs especially in mammals.

Female mammals lose their fertility at a certain age.

However, male mammals are different, as long as they can move, no matter how old they are, they have a certain probability of retaining their fertility.

Such examples are widespread in humans as higher mammals, and the same is true in nature.

[In July of the eighth year, you are aging]

Zhao Meng finally felt the breath of death.

After entering his eighth year, he felt that he was getting worse and worse, perhaps at this age he had competed with a young male platypus for mate.

Or maybe it was the grinding young new partner who sucked up the last bit of his essence, in short, Zhao Meng felt like he was going to die.

At this time, Zhao Meng learned from the female platypus, blocked the entrance of the underwater cave with something, and waited for the last time to come.

Death, Zhao Meng has experienced too much, and he also feels that it doesn't matter.

But he still finds it interesting to think back on the life of the platypus, although most animals are reincarnated by courtship and reproduction, and the offspring are regarded as the continuation of life.

However, this platypus is very comfortable most of the time.

It was also the comfortable life that made Zhao Meng slowly calm down and not think about the problems of those bitter masters.

"The simulation is coming to an end, and it's time to go back to face real life, and I don't know what kind of entries I can extract this time?"

Zhao Meng fell asleep deeply, and at some point, a line of text suddenly appeared in front of his eyes:

【Simulation Success】

Looking at these words, Zhao Meng was in a trance for a moment, and then he felt the body of a human being, and the influence of the platypus was also cleared by the phantom.

"Passing away from sleep is a good ending."

Zhao Meng muttered and opened his eyes, it was still the familiar thatched house, and it was still dark outside.

"You're weird!" Zhao Meng, who had just come back, suddenly heard a cold voice in his ears.

Hearing this, he paused for a moment, and then he reacted to something and looked at the corner of the house.

There was a metal box standing upright there, and it was from inside that the sound came.

"What's so strange?"

However, in the face of Zhao Meng's rhetorical question, the metal box was silent again, seeing this situation, Zhao Meng shook his head, and did not say anything more to this Yin Ji big stock.

"Draw the entries first!"

Zhao Meng closed his eyes directly, and his consciousness came to the virtual space.

At this time, the colored light cluster representing the platypus had turned white, and at the same time, a glittering lottery appeared in front of the phantom of the human's head and snake's tail.

"Hopefully the paralysis can be extracted."

Thinking about the purpose of this simulation, Zhao Meng did not hesitate, and as soon as his consciousness moved, he shook the lottery holder.

Soon a blue light appeared in front of him, and when the blue light dissipated, seeing the content of the entry, Zhao Meng sighed helplessly:

"It's not paralysis!"

【Fart Fat Oil (Blue)】

"You will have special fat glands and secrete special oils."

"That's what it does!" Zhao Meng said secretly, and thought of the possible use of the entry.

On ducks, there is a special gland near the buttocks.

This gland secretes water-repellent oil, which ducks apply to their bodies from time to time to facilitate their movement in the water.

In addition to the duck-like beak, the platypus also has such a structure in a certain part of its body, and it also needs to be smeared and maintained from time to time.

It can be said that platypus is a creature that comes with its own protective fluid.

"With a special function, can it be said that there are other functions besides waterproofing?"

"Speaking of which, I don't have any hair covering my body, so what's the use of putting this oil on my body?"

"Could it be that this analog system has strengthened the term in some way?"

Zhao Meng thought for a moment, recalling that when he simulated this magical beast, he didn't seem to find any other outrageous effects.

"I don't understand!"

"That's it! I'm not going to pick up this strange entry, let's go next! ”

Zhao Meng's mind moved again, and a dazzling light emanated from the stick:

"Withdrawn!"

However, looking at the golden entry, Zhao Meng was not happy at all.

What he wants is [paralysis].

At this time, the golden light dissipated, and the content of the entry also appeared in front of him,

[Egg-fetal duality (golden) (why not give birth) (long-distance bus)]

"You can let your unborn offspring transform each other in oviparity and viviparity."

Looking at the content of the entry, Zhao Meng said in his heart:

"The content of the entry is exactly what I guessed!"

"But what's the use of just converting the egg and the fetus?"

Thinking of this, Zhao Meng glanced at the content of the entry again,

He has simulated so many animals, and he can be regarded as understanding the various characteristics of animals.

He also knows a little about the difference between eggs and fetuses.

The advantage of viviparity is that the cubs can quickly adapt to life in the natural world, such as some cloven-hoofed horses, sheep and other creatures.

They are born to run, jump and move.

Humans are, in a sense, premature babies.

However, viviparity requires the mother to pay the price of pregnancy, and needs to double the energy obtained from the outside world to replenish physical strength.

The resulting decrease in mobility and childbirth-induced dystocia can lead to a much higher risk of pregnancy in female mammals.

And egg laying is different,

The cost of caring for the young is greatly reduced.

Some reptiles even need to bury their eggs in sandy ground, wet soil on the shore, or crevices in rocks at a suitable temperature, and just wait for the natural temperature to allow the eggs to hatch freely.

And most reptiles will ignore their offspring, let the offspring resign themselves to the fate of God, and experience natural elimination.

As a result, the survival rate of the offspring will also become a question.

However, there are also many advantages to egg raw,

For example, there are almost no difficult births, and a large number of eggs can be laid at a time.

If there is some nest guarding behavior, or simply incubating their offspring like a bird, it can also improve the fertility rate of the offspring to a certain extent.

"And if you turn a pregnant offspring into an egg!"

"Then you can take your offspring with you and wait until you have a suitable place to hatch the eggs."

"In a sense, if humans had this skill, would they be able to avoid dystocia?"

"And ......"

Zhao Meng's mind suddenly appeared that human-headed female ghost, these days, those female ghosts are pestering him.

He also gave the female ghost a lot of [love].

However, there was still no sign of the offspring of the human-headed female ghost, which made him a little suspicious that the human-headed female ghost was in difficult childbirth.

"If you turn the child of that human-headed female ghost into an egg, will it be able to change some of the current status quo?"

Thinking of this, looking at this golden entry, Zhao Meng actually had a hint of intention.

(End of chapter)