When the soldier died, the body was put into the body bag. They dug an ice pit on the side of the ship and buried him. Soon, it was frozen into a lump and sealed permanently.

He became a part of the planet forever.

The rest of the people went back to the bridge of the mother ship and sat around without a word.

They were waiting for the final result. After more than an hour, the professor came out of the laboratory with a memory in his hand.

He clicked the button on the memory, and the contents were projected onto the large screen. Under the microscope, a huge transparent bubble appeared. It was like a bag of liquid, with a thick skin, wrinkled skin and long tentacles behind it. The whole body was transparent, with long body hair and barbed hair.

"What a disgusting look!" Jia Jia covered her mouth and almost didn't vomit.

"It's 300 times larger, but it's actually very small!" Professor nado said. "There is no such creature on earth, not even similar. I named it ice leech worm."

Ice leech? Everyone looked at each other.

"Yes, don't underestimate this guy. His soft body seems to be weak, but it can withstand very low temperature. Because there is only one specimen, I don't dare to test it under very extreme conditions. At least, within the scope of my knowledge, the low temperature of minus 30 degrees on the planet has no effect on it..."

"Won't the water in its body freeze?" Hao Zhi also thought it was disgusting.

"It's a high concentration of body fluid in its body. Due to a special component, it has high activity, loose intermolecular structure and won't freeze!"

"This little guy killed my brother?" the soldier asked with gnashing teeth.

Professor nado nodded: "yes, according to my observation, this is a very rare parasite. It doesn't have much action ability. It can only parasitize on the host to develop and lay eggs. By the way, the white spots we found in the blood of those dead animals should be its eggs!"

"Also lay eggs... Vomit..." Lele stretched out his tongue and looked like he was going to vomit.

"Yes, every tentacle of the ice leech worm is very powerful. When it touches the host, it will climb to the position of the host's central nerve, and then plunge its long tentacles into it, connect it with the other party's main nerve, absorb nutrition and lay eggs at the same time. By the way, its eggs are the cells of the body. It is asexual reproduction, as long as it splits out a part of the body , every cell will grow into a new ice leech! "

"Well, even if it can parasitize, split and lay eggs... How did such a small thing kill the soldiers?" the old cat couldn't help interrupting.

"That's the problem. Unlike ordinary parasites, this little guy is parasitic in muscles or intestines. It only absorbs nutrition. It directly parasitizes the host's central nerve and inserts its tentacles into each other's nerve bundles. All biological physiological activities depend on nerve conduction. For example, it's like a wire that you insert Go to a needle. There's no problem. The current can still be conducted through this needle, so the soldiers usually can't see any abnormalities. Once the needle is pulled out, the wire is disconnected, and a fault appears in the middle of the nerve bundle, so even the basic heartbeat and breathing will stop instantly... "

"The real death!" Hao Zhi gasped. "Once it is parasitized, it can't be removed, otherwise it will be a dead end!"

"What about the dead animals? Is it because of this?" Sun Mingyu calmly connected with the previous problems.

Professor nado nodded affirmatively: "I have rechecked the animal corpses we have dissected before, and I am sure that there are similar micro wounds on the central nervous system of these animals. Their body hair is thick, so it is more difficult to find them."

Hao Zhi thought of the large number of corpses under the ice he had seen before: "perhaps there have been very prosperous biological systems on this planet. Even on the ice sheet, there are so many monsters like those we see living. They have just entered the initial stage of planetary evolution.

It has just evolved a complex large animal ecosystem, which is very promising to reach the stage of advanced intellectual civilization.

But I don't know which day, these guys appeared!

They invaded the satellite with super biological advantages, killed all creatures, and finally attached themselves to the body, sealed into the ice and dormant.

And we blew up the ice and carried out deep excavation, so that these damn things appeared again and parasitized on the soldiers... "

"But it is reasonable to say that if these things were here from the beginning, other creatures on the planet should have no chance to survive! Let alone enter complex evolution..."

"So, this guy must have come from space! Although I don't know where the birthplace is, they are like dandelions, drifting aimlessly with the electron flow or radiation wind in space. Once they encounter a living planet, they will fall and eat up!" the old cat made his own inference.

"Well, after these things came, all the creatures on the planet died almost overnight. According to my observation, almost all the animal bodies were sealed at the same level of the ice layer, indicating that the time of death was very close! And according to the current ice seal on Europa's surface increased by 0.2 mm every year, we dug about 20 meters to touch the dead The corpse layer, that is to say, the time when these worms came to Europa was about 100000 years ago.

"Wait!" Lele interrupted him incredulously. "You don't mean to say that these disgusting insects have lived for 100000 years only on the nutrition of the corpse?"

"How could that be?" Professor Naduo denied the idea. "No matter how subtle digestion, these corpses will be turned into fine powder in 100000 years. The preservation of the corpses shows that these ice leeches did not eat them at all, but they went dormant as the host died..."

Oh, my God! Dormant for 100000 years, once dug out, you can live immediately? What's this? How can there be such a terrible creature in the world?

How strong is the vitality to do this?

Professor nado clicked the screen and a video of pink meat worm came out: "As you know, this kind of thing exists not only in space, but also on earth. There is a kind of slow walking creature on earth. In fact, it can also be called microorganism, because it is so small that its true face can be seen only with a microscope. The most representative is the water bear. This animal is all over the world, and its body surface is covered with a water film, which can live on the nutrients in the water film.

But the water bear is the most tenacious creature on earth. It can live in a vacuum or radioactive environment without any protective measures, let alone children such as freezing, boiling and air drying... "