In a blink of an eye, three months passed like this. Zhang Yuan led the six young men and women in the laboratory to take a small transport plane and headed to the interstellar trading market for the second time. Some interstellar soldiers and rotational human diplomats were also accompanied by them.

Their main counterpart this time was the Toss civilization, the civilization that is good at magnetic field perception. Humans are very interested in this strange race, not only including its physiological structure, but also the historical and cultural aspects of this civilization.

Of course, other people's history and culture are not so easy to obtain, and even humans cannot promote their own culture and ideas for no reason. This is a very taboo and affects their own safety.

Speaking of this, Zhang Yuan solemnly said: "So, even if you are curious, don't talk nonsense. Our main purpose is to buy some magnetic field sensing organs of the Toss civilization, that is, biological organs. It would be good if you can buy more papers. If there are no ready-made biological organs, it would be too difficult for us to fabricate one out of thin air."

"But, will they sell it? I think it's very likely not. Even if you use Amoeba points to buy it, the other party will not be willing." said a boy wearing glasses.

The cells in an organ must contain all the genetic material of the Tos civilization. If humans obtain these genetic material, they can easily clone a Tos!

This is another huge taboo in interstellar etiquette.

Think about it, if other civilizations cloned humans, and then used this clone to perform biological experiments and dissected them. Even if this clone does not belong to the will of humans, there will still be a big wave within the human civilization, and then there will be huge conflicts between the two sides, and even wars will break out!

Or, a malicious civilization has created some specific biological virus against human genes.

Therefore, within human civilization, it is strictly forbidden to sell any cells about oneself, and not even a single hair.

The same is true for Toss civilization in theory.

Zhang Yuan smiled: "So, it's very difficult to trust between civilizations and civilizations. Even a cell is unwilling to be exposed... But it is not ruled out that civilization that doesn't care about this ethics, it's okay to do anything."

"If it really doesn't work, we can only settle for the second best..."

Soon, when we arrived at the inner ring trading area, the human spacecraft connected to the Toss communication signals.

Due to several transactions, the relationship between the two parties is quite decent.

"Dear human civilization, what new ideas do you have?" said this strange-looking alien life on the screen. This is the first time they have appeared on the screen.

He looked like a large giant salamander, with his limbs longer than the giant salamander, and he had six fingers in total, which were very flexible. The only difference between him and the giant salamander was that he had no eyes on his head, and replaced by two raised tentacles.

In other words, individuals of this civilization cannot feel any light, which may be because in ancient times, they lived in dark caves and could not touch light.

Because of this, the technology tree of the Toss civilization is very different from the ordinary interstellar civilization. Their technology products do not need a screen that can glow, but require devices that can emit special magnetic fields.

Changes in the magnetic field constitute the text and pictures of this civilization.

The most commonly used tool they use is a strong magnet. When a strong magnet comes into contact with other ferromagnetic substances, some materials will be magnetized and magnetic. In this way, it can be easily identified through magnetic field induction to form pictures and text.

Of course, the Toss brains can sense magnetic fields, but they cannot sense electromagnetic waves at higher frequencies, and they cannot emit electromagnetic waves. So they still speak, and the frequency of the sound is very high, all of which are ultrasonic waves. This ultrasonic wave is a kind of perception complementarity.

For human ears, high-frequency sounds are completely inaudible.

So, they perceive the outside world through magnetic fields, ultrasound, touch, smell, and taste, making up for the defects of the eyes to a certain extent. But it is only a certain extent.

After learning about electromagnetic waves, the Toss also longed for light.

These are basic civilized materials.

After Zhang Yuan explained his purpose, the guy on the screen twisted his body and a line of text was displayed on the human screen: "Sorry, my respected human, according to the internal security regulations, we cannot sell our organs, even if you pay a considerable amount of Amoeba points, you still cannot."

"In fact, most interstellar civilizations with the same morality cannot do this."

"It's okay, it's okay, we can understand!" Zhang Yuan said quickly: "We just want to obtain scientific and technological information in this area, but if there is no ready-made organ, we really can't design it out of thin air..."

He quickly proposed another plan: "If your civilization wants to, we can apply for a public biological laboratory in the interstellar trading market to exchange each other's sensory cells. The entire experiment is made public, and genetic sequences are not allowed to be measured. After the experiment is completed, all specimens are destroyed. Except for the data, no departure is allowed."

"We are willing to provide 167 different organisms of eyeballs, including humans, and share knowledge about bionic eye. What do you think of this condition?"

Zhang Yuan added another sentence: "Of course, the points of the biology laboratory are paid by us."

Just borrow a laboratory, you can get it at most 0.1 amoeba points.

After listening to Zhang Yuan's transaction plan, the Toss man opposite the screen thought for a long time, but didn't say anything.

As a rare species that can sense magnetic fields, there are actually many exchanges with other interstellar civilizations...

Similar experiments like Zhang Yuan proposed have been done, even more than a hundred times!

However, more than 20,000 years have passed.

They still did not see the real light. Other interstellar civilizations left with the Toss magnetic field perception data, but the Toss had no eyes and many experiments were not done well, especially biological experiments - it was impossible to put all organic matter in a little magnetic field.

Relying on ultrasonic waves and magnetic fields alone, it is very difficult to obtain information in this regard.

This is too difficult, it is really too difficult, you can't feel the light, relying on the magnetic field alone, there are too many defects!

However, the Toss civilization is a civilization with strong self-esteem and has many tough scientists. From a difficult environment to the present, it is impossible to achieve without any excellent qualities.

After a long time, a contact was sent from the communicator. The scientists were willing to engage in such experiments because they got another chance...

A free opportunity!

The Toss diplomat sighed. Even if he knew that this kind of experiment was likely to gain nothing and be taken advantage of by the other party. However, even if it was one in ten thousand, he had to fight for it.
Chapter completed!