"Biologist, leeches are afraid of salt, you don't know it, do you?" Su Tie looked at Yang Ruoliu stunned and said with a smile, "There is one in the kitchen." ”

Yang Ruoliu blushed when he said it, not that he didn't know that leeches were afraid of salt, but that he had a habitual thinking in the simple and rude practices in the wetland park, so when he saw this thing, he immediately thought of cutting off a piece of cycad meat.

She hurriedly went into the kitchen to get some edible salt, this is not a laboratory, and she didn't care about it so much, so she directly mixed some salt water from tap water.

"How many goodies do you have in your bag?" Su Tie watched Yang Ruoliu take out a straw from his backpack and was stunned for a moment, this thing is called a Pasteur straw, which is commonly known as a Pasteur straw. It is not easy to see, but it is common in some biological and medical laboratories.

What is a profession? At this time, I realized that the backpack she was carrying was a treasure chest, and people did a field expedition and carried out some simple test equipment.

Yang Ruoliu ignored the cycads, sucked up a few drops of salt water with a straw, and carefully dripped them on the wound of the cycad sticking to the leech with the help of a magnifying glass.

"This thing isn't afraid of salt water?" The cycad said curiously, and the two watched for a few minutes, and the leeches on the wound seemed to be unmoved, and they were stimulated by the salt water to sting, but these leeches were still tightly hanging on the cycad's wound.

In the past, in the hospital, the Ant Leech Emperor was sent into the patient's body through saline injection, and this process did not affect the Ant Leech Emperor himself, which can be understood, after all, the process is very fast, and the medical saline is only 0.9 concentration. It's just that I just smelled that the concentration of the saline prepared by Yang Ruoliu is quite high, far exceeding the concentration of medical saline.

"Is this a type of leech?" Yang Ruoliu also wondered, although the leech is small, it looks like a leech in appearance. But in any case, it is almost certain that this is an annelid, and it is a freshwater animal, and it is surprising that they are not moved by such a high concentration of salt water.

"I'll go, what are you going to do?" Su Tie watched in horror as Yang Ruoliu walked into the kitchen again and took out the whole package of edible salt, and knew what she wanted to do with her eyes closed.

If it is caught by a leech, the easiest way is to sprinkle a handful of salt on it, which is simple and convenient, and also avoid contact with these disgusting things. But now I'm a whole wound, and sprinkling a handful of salt on it is really sour.

"You should dedicate yourself to science." Yang Ruoliu smiled and said, "Let's think it's a live experiment." Either we're going to kill the leeches, or we're going to cut off your piece of meat? ”

The cycad has a black line, and these tiny ant leeches on it are a huge piece of gold, which kills me and hurts me to death. But if you want to cut off a piece of your own flesh, you are scared to think about it.

"Hiss" As Yang Ruoliu sprinkled a thin layer of salt powder, the cycad opened his mouth and bared his teeth and let out a cry of pain, finally understanding what it was like to sprinkle salt on the wound. Every grain of invisible salt fell on the wound like a steel needle pricking it, and soon the wound was crawling like an ant biting with its mouth open. The wound was painful and itchy, but it felt like I couldn't scratch it, it was too uncomfortable.

"Don't scream." Yang Ruoliu said with a red face, but seeing that the cycad's face was crooked, his thighs were straight, and his toes were constantly twisted together, he couldn't help but be angry, funny and distressed.

"Hey, you don't know what it feels like." The cycad said, "Wait another minute, if it doesn't work, I won't want it, it's a big deal to catch a few more." ”

"Hey, don't move." Yang Ruoliu hurriedly lay down, her head almost touched the crotch of the cycad, and she watched through the magnifying glass as an ant leech emperor in the wound slowly squirmed, curling up his torso into a small ball.

"Deformed! They're deformed! Yang Ruoliu lowered her head and exclaimed, as if she had discovered a new world.

Cycad's eyes turned white when he listened, this thing is a Transformer? Do you still know how to shapeshift? If it doesn't work, my wounds will rot to the point of "little cycads". Scientist: Did you know that excessive salt can have a hemolytic effect on wounds?

"Appreciate it yourself. It's fun! Yang Ruoliu handed the cycad magnifying glass and said with a smile.

Su Tie almost didn't vomit blood when he heard this, but he was really curious in his heart, and he felt that he grabbed a magnifying glass and looked at an ant leech that was "transforming".

"it!" The cycad was stunned when he looked at the scene in the magnifying glass, almost forgetting the pain caused by the salt.

Through the magnifying glass, I saw that an ant leech had curled up into a ball, and the surface of its body was constantly secreting a layer of milky white liquid, which looked like some kind of gelatin, gradually wrapping the entire torso of the ant leech.

Wrapped in this milky white substance, the whole leech is like a shelled rice, and then gradually compresses and becomes smaller, until it is almost two-thirds smaller than the original. In the process, the milky white substance wrapped in the body gradually turns yellow and dull, presumably oxidized in the air, and looks like an inconspicuous grain of sand. It was supposed to be a good minute, but it took Su Tie three minutes to watch the whole process.

"Chitin?" The cycad touched his nose and said, "Why do ant leeches have so many chitin?" "What?" Yang Ruoliu was stunned for a moment when she listened to the inexplicable words of the cycad.

Chitin itself is well known as this substance commonly known as chitin or chitin, which is actually a special type of glucose. This thing is actually very common, the simplest is the shell of shrimp and crab, which contains a lot of chitin, and chitin has this common name. The cell walls of some lower organisms also contain such substances.

This substance is almost harmless to the human body, and the food safety is similar to that of white sugar. But it's a good thing, and it has been found to have multiple effects in medicine, especially for cancer, diabetes and high blood pressure. In addition, it has a very wide range of uses in other chemical industries.

If the leech is a type of leech, then it should belong to a species of the phylum Annelid, and it is not surprising that it contains chitin as a relatively lower organism. However, it is worth studying that much chitin can be secreted in a short period of time.

Yang Ruoliu grabbed the magnifying glass and looked at an ant leech, although the naked eye could not tell what substance was wrapped on the surface of the leech, but it did look like a kind of carapace.

The most important thing is that this substance is not innate, but is secreted from the body in order to fight the external environment, and it is indeed very similar to organic matter in terms of mechanism, rather than the inorganic shell of shellfish.

"How do you know it's chitin?" Yang Ruoliu asked strangely.

"I smell it, do you believe it?" Cycad said with a smile.

Yang Ruoliu smiled at the corner of her mouth, naturally not believing what Su Tie said. It is impossible to smell such a small substance, and the most important thing is that chitin is an odorless substance for the human body.

"Hiss, take this thing off." The cycad screamed in pain and said, "I need to rinse it quickly." Can my story go down in the history of science? ”

The leech, who was sucking the sacs with a straw, glared at him when he heard this, but thinking that it was really uncomfortable to rub salt on the wound, he smiled and said, "If you publish the information about the leech, it won't be a problem." ”

Listening to this, Su Tie hurriedly waved his hand, in the face of huge economic interests, he would rather not have such a false name, it is estimated that from today onwards, all the information related to the ant leech must be kept secret, including the process of going to Aurora Hospital tomorrow to treat people, and he has leaked some of it in the army hospital.

It was quite convenient to collect the leeches that formed the sacs, and soon Yang Ruoliu completely cleaned up more than a dozen leeches from the cycad wound. The cycad couldn't bear it anymore and hurriedly rushed into the bathroom to rinse.

Taking advantage of this opportunity, Yang Ruoliu took out an empty bottle and filled a small half bottle of tap water, and then put an ant leech into it, and looked at the ant leech for a while without the slightest change, and it is estimated that they have a very high tolerance for the disinfectant in the tap water.

Yang Ruoliu sat on the sofa with her eyes closed and thought back to the process of the cycad catching the leech emperor, and couldn't figure out why the pig blood deliberately laid out did not have any temptation to this thing, but the gauze sticking to the cycad blood stains and a dead snake unexpectedly lured a large number of ant leeches.

This may be a coincidence, but it is more likely that pig blood is not attractive enough.

Thinking of this, Yang Ruoliu hurriedly took out a bowl of tap water from the kitchen, then took out the stiffened black snake from the outdoor refrigerator, and cut a small piece of meat on the snake's head and trunk respectively and put it into the bowl.

Wait for a while, wait until the snake meat in the bowl softens, and then use a straw to take out a few leeches and put them into the bowl together, and the scene behind makes Yang Ruoliu stunned.

"Why did they all pounce on the flesh of the snake's head?" Yang Ruoliu said to herself.

She did a few more similar experiments, but the leeches, as if they had only seen the pieces of flesh from the snake's head, had just been put into the bowl, and without surprise they all writhed and pounced on the pieces of flesh that had been cut from the snake's head. It's just that if you put the piece of meat cut from the trunk of the snake into the water alone, these leeches are not taboo, and they have been clinging to the piece of meat.

"What are you doing?" At this time, the cycad had already come out of the shower, and he asked with a smile as he watched Yang Ruoliu staring at these bowls.

"I guessed probably right." Yang Ruoliu said excitedly, "Ant leeches are really sensitive to certain substances. ”

"What substance?" Su Tie picked up a magnifying glass and stared at the two pieces of meat in the bowl, he knew what was going on when he saw the black snake corpse on the side, but he couldn't tell which piece was the snake's head and which was the snake's torso. It's just that only one of the pieces of meat in the bowl adsorbs the ant leeches, and Yang Ruoliu thinks it's quite strange when he says it.

Yang Ruoliu handed the cycad a tissue and said, "Stick some blood stains to me from your wound." ”

No way! The cycad rolled his eyes for a while, but he didn't expect that he would become the object of study. But the stakes were high, and he immediately took the tissue and pressed it against the wound in his leg. It was just sprinkled with salt by Yang Ruoliu, and the wound had not healed so quickly, but it was stained with a lot of blood this time.

Yang Ruoliu cut the paper towel into several small pieces, took out the septum and put it in a bowl along with a piece of meat cut from the snake's torso.

"Damn! What's going on? The cycad watched the leeches in the bowl keep pounce on the paper towels with their own blood stains, and his heart was horrified. He glanced at Yang Ruoliu and wanted her to be more detailed.

But what I see now are very simple comparative test representations, where can Yang Ruoliu say a doorway?

"What do you do?" Su Tie saw that Yang Ruoliu actually grabbed a knife and scratched her finger, "You want to test your own blood?" ”

Yang Ruoliu ignored him, squeezed out a few drops of blood from his fingers, tore off a small piece of his own blood with a paper towel and threw it into the bowl, and then put in a few leeches.

After seeing that the ant leeches were completely adsorbed on the paper towel stained with his own blood, Yang Ruoliu put a piece of paper towel stained with cycad blood into it. The ant leeches that were originally adsorbed on Yang Ruoliu's blood were like being hungry for a few days and suddenly seeing delicious food, so they quickly loosened the paper towel and swam to the piece stained with cycad blood.

Su Tie was stunned and speechless for a while.

"You understand, right?" Yang Ruoliu said with a little joy of success, "The experiment is simple and rough, but it basically shows that your blood is the same as snakehead meat, which is more attractive to ant leeches." My blood, and the meat cut from the trunk of the snake, are not disliked by the leeches, but if there is something more appealing to them, they will be selective. I think it's the same thing with the pig's blood you use, it's not attractive to leeches. ”

The cycad swallowed his saliva and said, "Why is it my blood and snakehead meat?" ”

"How do I know? It's not impossible for you to continue your research. Yang Ruoliu smiled and said, "But it's better not to study it now." I guess no one can think of what kind of substance can lure ant leeches. ”

It's really a bit unbelievable, it's that someone else gets an Ant Leech Emperor, but they can't think of how to get it in the wild. Who would have thought that only the blood of certain people, as well as the head of a black snake, could be used as a trap?

"But I can't figure out why it's only the snakehead, and the rest of the body doesn't." Yang Ruoliu held her chin with both hands and thought about it, thinking about the information of the black snake in her mind, but she couldn't come up with a reason. "The only explanation is that the head of the snake has a snake brain, which is relatively high in neurosubstance, and it happens to contain certain substances that can attract ant leeches."

When Su Tie heard this, he quickly grabbed the tissue stained with his own blood and sniffed it fiercely.

"Madman, what are you doing?" Yang Ruoliu couldn't smile bitterly, she watched the cycad keep sniffing the thing she had just used for experiments, and even cut the snake's head open, leaned her nose over and inhaled fiercely, "Can this thing still be sniffed?" ”

Cycad waved her hand to stop talking, closed his eyes tightly, his mind racing, and compared the smell he had just smelled from beginning to end, and then remembered if he had smelled something similar before.

Yang Ruoliu looked at Su Tie's trance, and wanted to stop him, but it seemed that he was not playing tricks. More than ten minutes later, I saw Su Tie blushing and suddenly opening his eyes, looking incredulous.

"your lungs! How so? Su Tie said in a daze.

"What's wrong?" Yang Ruoliu said with a smile, at this time, he felt that he was like a magic stick, and the originally serious scientific research was baffled by him, and he really wanted to kick this guy awake.

"Nothing." Cycad said.

"Are you mistaken?" Yang Ruoliu glared at him, "You even guarded me?" Say what you think of quickly. ”

"You know chitin, you know, but do you know sildenafil citrate?" Su Tie said with a smile.

Yang Ruoliu thought for a while, from the name, it should be a very strange and complex chemical substance, but I don't think I can write this word, let alone know it, she shook her head and said, "What is it?" ”

"It is a selective inhibitor of phosphodietype penta-specific for cyclic guanosine monophosphate." Cycad licked his lips and said with a smile.

"Speak human words. I studied zoology. Yang Ruoliu was stunned by what he said, and slapped his palm on the head in anger, "I'm not a chemist." ”

"Simply put, it's the main ingredient in Viagra." Cycad touched his head and said.

Yang Ruoliu's face turned red suddenly, and he was confused when he heard what guanosine guanate inhibitors were, but Viagra himself knew. She glanced at the cycad and blushed and said, "You will also have this thing in your body?" ”

"How did I know this was going to happen?" Cycad was a little crying, how could he know these things, and he would not be so bored as to cut himself before and then stuff the wound into his nose and smell, "Strictly speaking, it's not this substance, but chitin chelate sildenafil citrate salt." ”

Yang Ruoliu understood this sentence, anyway, it is a chitin chelate. Chitin is inherently highly chelating, and some of its effects rely on such chemical reactions. It's just very strange how it synthesizes such a peculiar chemical in cycads.

"How do you know?" Yang Ruoliu said curiously, I really can't figure out how the cycad can sniff it a few times, what does he do with those fine chemical detection instruments like this? But he doesn't look like a fake when he says it, who can say a chitin chelate sildenafil citrate salt for no reason?

Su Tie waved his hand helplessly and said, "I don't know either." However, this question is ten million times more difficult than studying the Ant Leech Emperor, and I can't say clearly. ”