In the end of the ice age, I hoarded tens of billions of supplies

Yang Xinxin's words attracted everyone's attention, and everyone turned to look at her.

Zhang Yi's eyes lit up. Yang Xinxin had a very high IQ and could always easily see through problems that ordinary people could not find.

Since she said that, there must be a basis for it.

"Xinxin, what do you think about this matter?"

Zhang Yi asked.

Amid the expectant and curious gazes of the crowd, Yang Xinxin slowly spoke, "Do you remember when these attacks by the aliens from Fog Valley happened?"

Zhou Keer immediately helped everyone recall: "The last time was at midnight, around 12 o'clock. The attack on Shengjing District was also during this time period. According to the intelligence they provided, it was around 10 o'clock in the evening."

Yang Xinxin said: "That's right. They usually choose to act late at night. And they are all wearing thick armor."

"In fact, judging from their combat power, that kind of armor doesn't improve them that much."

Yang Xinxin said this and looked at Zhang Yi, "Brother, apart from the special armor you are wearing, is there anything special about the combat uniforms worn by the Ipsilons in other regions?"

Zhang Yi shrugged and said, "The biggest function is actually heat preservation, and it provides a series of relatively comprehensive functions. But for Ipsilon-level aliens, it can only make up for their respective shortcomings, but it cannot get much combat power bonus."

Yang Xinxin snapped her fingers crisply: "Yes, that's right."

"So we can also conclude that they who live in the underground world have no way to adapt to the environment of the surface world."

"It's just like when humans go into the deep sea or into space, they have to wear special clothes."

"The surface temperature is very low now, and it is difficult for them to adapt quickly."

Lu Keren raised his objection at this time.

"But I remember that during the battle, some of the armors of the Fog Valley aliens were damaged, but they were still able to continue fighting."

Yang Xinxin said: "This is most likely related to their own supernatural attributes. Just like the enhanced supernatural beings who can withstand extreme environments."

Zhang Yi nodded: "That makes a lot of sense. In other words, they rushed onto the land to attack us, and they were not very adaptable to the environment, right?"

Zhang Yi thought about it and suddenly shook his head: "This doesn't make much sense. Let alone them, we ourselves have to wear combat uniforms to resist the extreme low temperature."

If there is no protection of combat uniforms, mutants without physical enhancement abilities will definitely be frostbitten or even frozen to death by the extremely low temperatures in the current external environment.

Yang Xinxin smiled slightly: "In addition to this, there must be other aspects. For example, ultraviolet rays, or air."

"Think about it carefully," Yang Xinxin slowly looked at Zhang Yi and the others, "Why did they choose to retreat less than two hours after the battle started, even though they had absolute advantages in several regions?"

"Perhaps their bodies can only sustain fighting for so long in the surface environment."

She looked at Zhang Yi: "Brother, do you remember the time we went to the underground demon kingdom in the southwest region?"

Zhang Yi nodded. Of course he remembered that time.

Although he did not stay in Nash Country for a long time, the memory it left on him was extremely deep, and even made him feel like he had been there for several months.

Because the environment was too depressing for him!

The light and oxygen concentration are completely different from those on the surface world, and he must breathe oxygen to maintain the best combat condition.

"But how do you explain Ruan Ping?" Zhou Ke'er frowned and said, "He has been undercover in Tianhai City for a year. His daily actions are no different from those of ordinary people."

Yang Xinxin explained: "Because he was wearing human skin, which was a high-tech combat uniform."

Yang Xinxin looked at Lu Keren, and Lu Keren also looked over, and the two smiled at each other.

"After killing Ruan Ping, although his body was destroyed, we found some remains at the scene of the battle. This included shattered human skin."

"We analyzed it and found that it is an artificial skin similar to biological tissue. One of its main functions is to protect against ultraviolet rays."

Zhang Yi raised his head suddenly. "Ultraviolet protection? You mean, those guys in the Wuluan Empire are afraid of the sun?"

Yang Xinxin nodded.

"According to the intelligence we have obtained so far, they are indeed not adapted to strong ultraviolet rays. Even if they are not as afraid of ultraviolet rays as the legendary vampires, they are definitely not adapted to environments with strong ultraviolet rays."

She spread her hands and said, "After all, they have lived in the underground world for an extremely long time and have never been able to see the sun in the sky."

Zhang Yi's heart was pounding. He held his chin and wondered how likely Yang Xinxin's analysis was.

Yang Xinxin said bluntly: "It's actually very simple to confirm my guess."

"Brother, how could you forget that we still have many corpses of lizardmen in our hands? We can just use their corpses to do experiments and we will know the answer, right?"

Zhang Yi slapped his forehead and said, "Yeah, how could I forget this!"

It had not been long since the previous battle, and the entire Huaxu Kingdom was shrouded in a war that could break out again at any time. Zhang Yi even forgot to dissect the bodies of the lizardmen to study their weaknesses.

Zhang Yi said to Zhou Ke'er without hesitation: "Ke'er, thank you for your hard work these past few days!"

Zhou Ke'er nodded, her face full of joy: "Finally, I found an opportunity to find their weakness! I will definitely give you the experimental results as soon as possible!"

Zhang Yi turned on the communication device and sent a message directly to the high-level group of the six major districts of Huaxu Country.

Tell them that you have the corpse of the Lizardman in your hands.

It's a bit sad to say that in this battle, only Tianhai City had the corpses of Lizardmen left.

In other regions, the lizardmen took away the bodies of their dead soldiers very calmly when they retreated.

All the major regions finally came to their senses at this time and immediately sent people to Tianhai City to receive the corpses of the Lizardmen and take them back for research.

The first to arrive, of course, was Dai Sheng, the [Tianjie Star] from Shengjing Region. Having already completed the layout of the entire Huaxu Kingdom's star cluster, he could travel between the various regions at any time.

The next person to arrive was the messenger from Blizzard City.

Researchers from the Scientific Research Department and people from Deng’s Biotechnology Company—Deng Shentong came here in person.

After seeing Deng Shentong, Zhang Yi couldn't help but look at him twice more.

He could sense that there was something unusual about the man in front of him.

Zhang Yi asked: "Are you already in Ipsilon?"