Looking at the door swaying back and forth, the male doctor did not hesitate at all, and pounced directly on it.

Inside the house, the male nurse was lying on the ground, still convulsing before he could breathe. The male doctor glanced at the companion and immediately looked to the left and right.

"Bang!"

With the sudden sound of the door closing behind him, the male doctor turned around abruptly and looked at Su Lifeng, who was still slapping his hand on the door, with lime sprinkled on his head and blood dripping on the open bone wings behind him.

"You're an F-class, aren't you?" Su Lifeng didn't make any further moves, but suddenly asked.

Maybe it was an illusion, but this male doctor saw a hint of impatience in Su Lifeng's eyes, and even a look of satisfaction and expectation. This added a hint of vigilance to his originally indifferent eyes, and at the same time, in the darkness, his eyes began to emit a light that was completely different from that of humans. A terrifying blue ......

"Why don't you speak? F-class xenos are already fluent in using human language, aren't they? I just heard you say that you want to catch me, and now that I have taken the initiative to come to you, you don't think it's even if you are so enthusiastic about me. Should you talk to me about that too? A smile appeared on the corner of Su Lifeng's mouth and asked. No matter how highly intelligent these aliens are, they are still monsters completely different from humans in the skin of humans. Su Lifeng really wanted to take this opportunity to find out the thinking of these xenos, at least to know how they planned their actions.

Until just now, Su Lifeng thought that they were sitting in the hospital waiting for humans to deliver them to the door, but after listening to the conversation between this F-class xenomorph and the male nurse, he realized that he had underestimated these xenomorphs. The degree to which they mimic the patterns of human behavior is still beyond his imagination.

As for the change in the color of this alien eye...... Although Su Lifeng felt a little like the temperature had dropped, he didn't feel frightened. I just didn't see it......

The male doctor xenomorph kept staring at Su Lifeng until he found that Su Lifeng was still smiling after saying this, and he finally opened his mouth: "Do you know that F-class xenos and humans have a stronger degree of integration...... Who told you that? ”

It became ...... Su Lifeng felt a surprise in his heart. He deliberately used tentative statements, but he didn't expect to really deceive this xenomorph. And in the sentence he said casually, there is a very important message: integration.

Normal xenomorphs and humans have a low degree of integration, so what is their situation? Decays quickly, mechanically mimicked ...... The second is mainly manifested in a single pattern of behavior, always repeating a few sentences back and forth like a repeater. The F-class xenomorphs have a high degree of fusion, and these problems are significantly reduced.

Su Lifeng himself is a student of biology, and a short word allows him to quickly analyze these things in combination with reality.

"It turns out that this is the meaning of xenostratification, and a higher level of xenomorphism means a higher degree of integration with living beings, and this also shows the evolutionary level of the xenomorph." Su Lifeng thought secretly. He doesn't really know exactly what the internal structure of the xenomorph is, but at least what is certain now is that one is centered on the intelligent species, and the other is a pyramid-shaped hierarchical system.

For example, it was this F-class xenomorph who was issuing orders to its kind.

"Where did you absorb the wisdom seed?" The male doctor asked heterogeneously. He was also trying to talk to Su Lifeng, but this skill was really a little low-level.

"Li Yi really passed all the information back before he died......" Su Lifeng said silently in his heart, but on the surface, he replied, "In a mountain, how many space doors have you opened in total?" Where are they? If you think about it, you might be able to guess where I'm talking about. ”

"It's not information I'll know." The male doctor's heterogeneous answer disappointed Su Lifeng.

"Are you only going to use recruitment? The means are a little too weak. Su Lifeng's face remained impassive, and he turned to another key point.

This time, it was the male doctor's turn to smile: "Of course not, this is a little more way." Mutant, you're interrogating me...... Then you know that I'm also stalling for time? ”

"Da Da Da ......"

There was a sudden dense sound in the corridor, Su Lifeng's face changed greatly, and he rushed to the male doctor as soon as possible.

The male doctor was obviously prepared, and several blue dots suddenly appeared in his dark blue eyes, as if several eyes were accommodated in one socket at the same time. Without rolling his eyes, or even not focusing, Su Lifeng felt that he had locked on his surroundings and all his movements.

"Spider ......" A look of disgust flashed on Su Lifeng's face, these xenos can really be absorbed by any creature, and the species of organisms absorbed by them will eventually go extinct.

No wonder they are called xenos, they are enemies of all living species.

The male doctor had two black lines drilled out of his ears, and when Su Lifeng's bone wings stabbed at him, these two black lines immediately and accurately met him.

At the same time, the male doctor's mouth suddenly opened, and a wisp of spider silk erupted: "Mutant, do you think I only have ontological attacks?" I can see that you used to be an ordinary person and couldn't fight. ”

Su Lifeng really didn't expect this xenomorph to have this hand, but after absorbing those ordinary xenos, his body had been greatly strengthened. In the nick of time, he made a move that he would not normally be able to do: he accelerated further as he rushed forward at high speed, while retracting a bone wing in front of him.

Burst!

The slimy spider silk immediately stuck to the bone wing, and the black line also "swished" into Su Lifeng's shoulder.

"Ahh

This was the first time that Su Lifeng had experienced the sensation of being absorbed by a different species, as if everything in that part, bones, blood vessels, and flesh and blood were all squirming towards that black line.

But under the severe pain, Su Lifeng did not stop.

"Bang!"

Su Lifeng just ran into this male doctor xenomorph directly, and his bone wings were always in front of him, blocking all the spider silk spewed out by the male doctor xenomorph. At the moment of collision, he felt a pain in his shoulder blade breaking, but at the same time, the scalpel in his hand had already pierced horizontally under the opponent's fourth rib.

The two sides looked at each other, and after two seconds, the male doctor's xenomorphic body went limp.

"Haah......" Su Lifeng put down his bone wings at this time, and the black thread that sucked his shoulders dry up also fell off automatically. In the severe pain, Su Lifeng watched with satisfaction as a black thread drilled out of the male doctor's xenomorphic heart, and said to himself: "I can't fight, but I know that there is a saying, when you meet on a narrow road, the brave wins!" ”

At this time, the voice outside the corridor had already reached the door, and through the glass, countless black shadows could be seen crashing into the door......

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