My Deep-sea Fishery

Xiang Yang and Wu Shiwen looked at each other, and they both saw the helplessness in each other's eyes.

This foreigner has been arguing how beautiful the thick-shelled sea chrysanthemum clam is, and trying to convince Xiang Yang and others to accept the aesthetics he conveyed, but he never mentions that the thick-shelled sea chrysanthemum clam is the raw material of the yuan shell .

Xiang Yang secretly thought in his heart, this foreigner probably doesn't know the saying about domestic treasures.

Reasonably speaking, this should be a good thing for Xiang Yang and Wu Shiwen, so why is Xiang Yang helpless?

Because Xiang Yang also understood why Gao Chuang kept holding on to the Oriole King Haiju clam.

Apparently, Gao Chuang also took a fancy to this batch of thick-shelled sea chrysanthemum clams, and was using the Yingwang sea chrysanthemum clams as a cover to bargain hard.

Sure enough, after discussing with Gao Chuang to no avail, Ge Lan spread his hands helplessly, "Gao, my friend, this is already the lowest price I can offer, if it is any lower, I won't even be able to collect the cost." I'm back, but you like beautiful things, I have something here, you should be interested."

"oh?"

Gao Chuang pretended to be interested, "What?"

"You wait, I'll go to the cabin and get it out for you now," said Grant.

After Ge Lan left, Gao Chuang took off his gloves, lit a cigarette for himself, first smoked happily, and then said arrogantly: "This foreign devil, he is still young to fight with me, you wait for a while." Look, see how I get these thick-shelled sea chrysanthemum clams for cheap."

Xiang Yang wondered: "Mr. Gao, they also specialize in seafood business, don't they know the value of sea chrysanthemum clams?"

"This will involve the differences between Chinese and Western cultures." Gao Chuang said with a smile.

"Sea chrysanthemum clam is called red snail in the west. It is a good-looking ornamental seafood that is priced at gold. It is deeply loved by people from all walks of life in the West. There are even many conch lovers who resist killing red snails. Therefore, in foreign countries, sea chrysanthemum clams are generally popular Not for eating, but for watching."

"In our east, sea chrysanthemum clams are called Yuanbei, which is one of the eight treasures of the sea."

Hearing this, Xiang Yang smiled and nodded, "Speaking of which, there is another very interesting thing."

"It is said that during the period of Emperor Qianlong, a foreign envoy presented a pair of Yingwang sea chrysanthemum clams to Emperor Qianlong. As a result, Emperor Qianlong didn't know him, so he asked the imperial chef to make a dish for him. After eating it, he thought it tasted good, so he followed that The foreign envoys praised the sea chrysanthemum clam."

"Actually, the pair of red snails are not for eating at all."

Gao Chuang smiled and shook his head, "If it were me, I would eat it too. You don't need to eat such top-quality yuan shells, but keep them for viewing. It's really a waste of money."

"Okay, stop talking, the foreign devil is here, don't let him hear this, let's see what he brought here this time."

"Gao, my friend, I kept you waiting for a long time. I brought my baby. I believe you will like it this time." Grant walked over with a smile on his face. Behind him, there were four A tall white man was carrying a large water tank.

"Oh, then I must take a good look." Gao Chuang smiled and walked towards the water tank.

Xiang Yang also looked into the water tank curiously.

As a result, when he saw it, Xiang Yang showed disappointment on his face, "What, isn't this just a sponge?"

Gren immediately became unhappy, he said seriously: "Xiang, take a closer look, this is no ordinary sponge."

Xiang Yang stared at the inside of the water tank carefully for a while, "Isn't this just a very common six-release sponge?"

"Wrong, this is the oldest animal on this planet, and it is a real living fossil." Grant said mysteriously.

"Forehead."

Xiang Yang was almost choked by Ge Lan's words, especially when Ge Lan said this, with a complacent and mysterious look on his face, Xiang Yang thought it was funny.

That's right.

Sponges are indeed one of the oldest living things on Earth.

But at the same time, sponges are also the simplest creatures on earth.

In the past, human beings have gone through a long and complicated process of understanding the position of sponges in biological evolution.

But today, sponges are no longer mysterious to humans.

It is true that sponges are living fossils, but this is not worthy of commercial touting at all.

Because sponges, as living fossils, have no commercial added value at all except for providing some evidence for biological evolution research.

In Xiang Yang's view, a sponge is just a primitive, low-level aquatic multicellular animal that can be seen everywhere, and has no commercial value at all.

Gao Chuang showed a very interested look, "I have seen these things near the equator, can they survive in Antarctica?"

Grant quickly said: "That's right, although its structure is very simple, it is actually a very special biological group, and its body contains extremely rich biologically active substances. If it becomes a single cell, it can still survive, you can think of it as a flower, and every piece of it is a seed."

Xiang Yang smiled slightly, but did not speak.

In the past, when sponges were called flowers and fruits, sponges were still a very mysterious creature.

In the past, many people thought that they could not move, they could only drift with the current, or sponges attached to rocks, shells, aquatic plants or other objects in the water were plants.

However, in modern times, since the appearance of the microscope, all the mysteries about sponges have been solved by humans.

Although the sponge looks like a plant, it is actually an animal.

"Brother Yang, is this sponge really a flower?" At this time, Wu Shiwen asked in a low voice.

"of course not."

Xiang Yang shook his head and said: "Although a sponge has no mouth, no digestive cavity, and no nervous system, it is indeed an animal, the simplest low-level animal."

Most of the sponges living in seawater are gray-yellow, brown or black lumps.

The body surface of many sponges has many protrusions, and many small holes of different sizes are distributed beside the protrusions.

The sponge can use these small holes to let the prey fall into the net.

Although the size of individual sponges varies greatly, the small ones are only a few millimeters in size, and the large ones can even reach hundreds of meters, but no matter the size, the internal structure of the sponge is very simple.

The whole body of the sponge is composed of inner and outer layers of cells. There are no differentiated tissues in the body, but some cells are different in structure and function.

It is said that the sponge has a very strong filtering function. A complete sponge has 400 billion small holes on the body surface that are the same as the body cavity, and it is supported by sandy fiber bones, just like a channel system densely covered with tens of thousands of water networks. .

A sponge with a diameter of only one centimeter can filter twenty kilograms of seawater a day. It is a very important part of the entire marine ecosystem, and it is also a very practical seafood in the sea tank.