The boss starts with brushing achievements

Chapter 239 "Eternal Life" Creature

laboratory.

Freshmen in biology are fiddling with their petri dishes.

Xue Mo dripped the sodium chloride solution seriously, while hearing Han Yudong and Chen Li chatting.

"I candy's performance in this movie is perfect. Now, no one dares to say that her acting skills are not good enough." Han Yudong said proudly.

"That's my candy." Chen Li declared his sovereignty first, and then echoed, "He was powerful in the first place, but he just got blacked out by those black people."

"They are jealous." Han Yudong snorted.

Then his head had an intimate contact with Professor Sun's palm.

"Seriously experiment!"

Han Yudong shrank his head and was honest for a while. When Professor Sun transferred to other students, he returned to his original nature.

When I was a student, the students always fought wits and courage with the teachers, but it was more subtle in high school.

In college, under the treatment of the teacher who turned a blind eye, the students also became presumptuous.

Of course, Han Yudong and the others are not presumptuous, they just want to find a little interest from the boring experiment.

After the class, the other students left, leaving only Xue Mo, An Xiaoxiao and Professor Sun in the laboratory.

Originally, other students would have stayed to see how Professor Sun made a fuss about Xue Mo.

As a result, during the whole process, they were all sluggish, showing embarrassing smiles from time to time.

At that time, they felt that they were all freshmen who entered the school together, when did the gap become so big?
After that, they never came again, and they came in vain.

Only An Xiaoxiao was working hard to keep up with Xue Mo's footsteps, but she would not come to the laboratory to waste time, but supplemented the corresponding knowledge in the library, trying to understand.

This time she came to see if she could understand.

Professor Sun gave An Xiaoxiao a meaningful look, and then started teaching.

"Today we will talk about a kind of immortal creature in the world - lighthouse jellyfish." Professor Sun said.

An Xiaoxiao sat quietly, thinking of the introduction to the lighthouse jellyfish in the book she had read in her mind.

The lighthouse jellyfish is an animal of the genus Lighthouse jellyfish in the family Hydromedidae.

Its body is small, bell-shaped, and transparent. You can see the red digestive system. It looks like a lighthouse from a distance, so it got its name.

Lighthouse jellyfish mostly live in tropical waters, mainly in the waters of the Caribbean, and also in the offshore waters of Spain, Italy, and Japan.

It is still rare to see in this country.

"Let's go, I'll take you to have a look." Professor Sun smiled slightly.

He also took other students to see this creature, so he didn't keep others here on purpose.

After walking for more than ten minutes, Xue Mo saw the fish tank with the lighthouse jellyfish again, which cost a lot of money.

The price of ordinary jellyfish is still cheap, you can buy it for a few dollars, and there are a lot of dozens of them. Even the lighthouse jellyfish is a little more expensive.

Therefore, the bulk of the cost is on the fish tank.

A normal jellyfish tank costs about 1 yuan per square meter.

It is impossible to keep only one in the laboratory, so the fish tank is much larger, and the price is unimaginable for ordinary people.

Some rich people still like to raise jellyfish. Although jellyfish are not expensive, fish tanks are expensive, which is a way to show their financial resources.

The reason for the high price is that there are strict requirements on water temperature, water quality, oxygen, nitrification system, filtration system, pH, hardness, and ph value.

Even if ordinary people bought fish tanks back, more people died than survived.

But the lighthouse jellyfish in this tank look healthy.

The three of Xue Mo approached the fish tank.

The diameter of the lighthouse jellyfish is only 4-5 mm, and its body is still transparent. If it weren't for the iconic "lighthouse", the three of them would not be able to see it no matter how close they were.

"It's so beautiful!" An Xiaoxiao sighed.

Professor Sun took a deep look at the lighthouse jellyfish, and asked with a smile: "I introduced the lighthouse jellyfish to you last time, and this time I will test you."

Xue Mo and An Xiaoxiao looked at him, showing that they were ready.

"I won't take the test if it's too simple." Professor Sun pointed to the fish tank, but he didn't know which lighthouse jellyfish he was pointing at and asked, "Why are lighthouse jellyfish called immortals?"

"Strictly speaking, the lighthouse jellyfish is not really immortal." Xue Mo said seriously, "If there is one word to describe it, it is resurrection. In theory, it can be resurrected infinitely."

"When they encounter starvation, physical injury and other unexpected situations, their cells will reverse to younger, this reversal is not strictly speaking resurrection, the original individual will be transformed into neuron cells, sperm cells Or egg cells, through asexual reproduction, are born again."

Professor Sun nodded in satisfaction. He looked at An Xiaoxiao and asked, "What about you, do you have anything to add?"

"Teacher, I have nothing to add to your question." An Xiaoxiao replied.

Professor Sun took a breath, and asked in a different way: "Then you can talk about the other things in detail, and I'll see how you master it."

An Xiaoxiao then replied: "Although the lighthouse jellyfish can be reborn through asexual reproduction, they are also divided into male and female, and can reproduce through fertilization."

"In the process of this reversal, it will transform itself into a water drop-like cyst, and then continue to develop from this cyst into the original life form of jellyfish..."

An Xiaoxiao looked at Xue Mo, and for a moment she forgot what it should be called.

"Hydra group." Xue Mo said cooperatively.

"Yes, the polyp group." An Xiaoxiao unconsciously brought a smile on her face, "And after rebirth, this polyp group will grow into hundreds of lighthouse jellyfish that are almost identical to the DNA of the previous adult lighthouse jellyfish. Not strictly immortality."

"And." Xue Mo said, "It's worth mentioning that Hydra can also be regarded as an immortal creature, and the aging signs of their cells are very slow."

Professor Sun said at this time: "The conclusion of Hydra is so, but you have to remain skeptical. After all, the time humans can observe them is limited, and it is not 100% sure that they can live forever."

Xue Mo retorted: "But they have the same ability as the lighthouse jellyfish. They have stem cells that are constantly dividing and multiplying. Although Hydra should not be immortal in the true sense."

Professor Sun nodded: "So, the focus of our research is this kind of stem cells that are constantly dividing and multiplying."

"The ability of lower creatures is extremely powerful." An Xiaoxiao felt it was amazing, and then sighed, "On the contrary, humans who have evolved into higher creatures have lost this ability."

Xue Mo looked at her: "It can't be said to be lost, it's just a deep sleep. What we need to find is the reason for the deep sleep!"

(End of this chapter)