The horseshoe crab has 3 hearts and belongs to an ancient blue blooded creature, and what is the val

Blood is a natural reagent for testing toxicity, and it has a lot of value behind it. The horseshoe crab not only has 3 hearts, but also belongs to an ancient blue-blooded creature, it is very different from almost all creatures in nature now, its survival history can be traced back to the age of dinosaurs, and is called the "living fossil" on the earth by professionals.

The horseshoe crab is distinctly different from what it normally thinks of as a creature, as it is covered in a hard carapace, from the top of which two small eyes and two compound eyes peek. Taken as a whole, it looks like a flat stone. It is only when you see that it has a long tail that you realize that it is a living thing.

From a professional point of view, horseshoe crabs are very similar to the crustaceans commonly found in nature.

The current horseshoe crab was born 400 million years ago, and in the process of evolution, it did not change greatly in appearance and appearance like other creatures, but still retained the appearance and carapace structure of the past, and the guest ** is like a giant insect. Although the environment in which it grows has changed dramatically, it is still the same as it was 400 million years ago. 400 million years ago, it lived in a warm ocean, and its life was very monotonous, and it only instinctively moved its body a little when it hunted.

In addition to its strong research value, horseshoe crabs also have great medicinal value. The blue blood of horseshoe crabs contains substances that can clot blood, and because the substance is extremely sensitive to toxicity, it will immediately coagulate itself in the blood vessels as soon as it feels toxic, thereby slowing down the effects of the toxin on organs throughout the body. Probably exactly that,The blood of horseshoe crabs has become a natural reagent for testing toxicity, which can not only effectively measure the quality of drugs, but also effectively prevent bacterial infection.

However, it may be that the horseshoe crab has great medical value behind it, which makes the survival of the horseshoe crab very worrying. Horseshoe crabs in the wild are being hunted by humans in an uncontrollable manner. Including some specially set up research laboratories, horseshoe crabs will be tied up and constantly draw blood for research, which can easily lead to a great reduction in the quality of life of horseshoe crabs, and even make many horseshoe crabs can only spend their short lives in the laboratory.

There are two reasons why horseshoe crabs can be the subject of attentionThe first reason is that it has three hearts; The second reason is that it has natural blue blood. Of these two reasons, either one can refresh people's understanding of living things in nature. The reason why the horseshoe crab can become the only natural blue-blooded creature in nature is because it produces an alternation between carbon dioxide and oxygen during the three-step process of its blood, which in turn causes the blood to change its color to blue.

The horseshoe crab has three hearts, and the reason for this is to increase its own blood flow and meet its need to flow blood throughout the body at a faster rate. In addition, more carbon dioxide and oxygen can be produced from the gills to be replaced, and only then can the three hearts naturally grow to maintain the basic survival.

The value of the horseshoe crab is its blue blood, and it is precisely because it can be used to make horseshoe crab reagents that it is used by humans in large quantities.

It has great medicinal value, and it is also valuable for the study of biological history.

The value behind it is very high, and the whole body is a treasure, which can be used not only as medicine, but also as an ornamental animal.

Because the blood of this animal has excellent research value and can be made into medicine, it is used in large quantities, and the number is getting smaller and smaller, and it has become a protected animal.

Because there are very few horseshoe crabs in our country now. This marine creature is on the verge of extinction, which is why it has become a protected animal.

People are very fond of eating this animal, and they are about to become extinct when they eat this animal, so it has become a protected animal.

Because the taste of this thing is relatively good, the nutritional value is relatively high, so people prefer to eat this animal.

Be.

It is the only creature in the world that has blue blood, and even its cell structure is different from most organisms. There are four types of horseshoe crabs, namely the Chinese horseshoe crab, the American horseshoe crab, the southern horseshoe crab, and the round-tailed horseshoe crab, and the main difference between these four types of horseshoe crab is only the difference in color and tail.

Because the age of survival is too far away, the horseshoe crab is a creature that maintains its own form for the longest time in the evolution of life, so the scientific community calls it a living fossil, but this living fossil that has survived for 400 million years is difficult to survive in modern society, and has become an endangered animal.

Of course, the Chinese horseshoe crab is distributed in the coastal areas of China, and there has always been a tradition of eating horseshoe crabs in southern Fujian, except for the round-tailed horseshoe crab that contains the poison of the pufferfish, the meat, gonads and eggs of other horseshoe crabs can be eaten, because its structure is similar to that of crabs, so it is also called horseshoe crabs. But eating horseshoe crab is a troublesome thing because its blue blood contains a lot of copper ions, which can cause poisoning if eaten in large quantities.

The blood of horseshoe crabs is blue. Horseshoe crab has a unique medical value, the blood of horseshoe crab contains copper ions, and the color of copper oxidation is blue-green, so the extract of blue blood is "horseshoe crab reagent", which can accurately and quickly detect whether the internal tissues of the human body are diseased due to bacterial infection; In the pharmaceutical and food industries, it can be used to monitor toxin contamination. Scientists also use horseshoe crab blood to study cancer.

The horseshoe crab is a national second-class protected animal, it is an arthropod, the horseshoe crab resembles a crab, the body is blue-brown or dark brown, covered with a hard carapace, and has four eyes, two of which are compound eyes.

The ancestors of the horseshoe crab appeared in the Devonian period of the Paleozoic era in geological history, when the dinosaurs had not yet appeared, and the primitive fish had just appeared, and with the passage of time, the animals of its contemporaries either evolved or became extinct, and only the horseshoe crab still retained its primitive and ancient appearance from more than 400 million years ago, so the horseshoe crab is called a "living fossil".

The earliest fossils of horseshoe crabs were found in the Ordovician, and the fossils of horseshoe crabs similar in morphology to modern horseshoe crabs appeared in the Jurassic. Horseshoe crabs are as old as trilobites. Horseshoe crabs, also known as horseshoe crabs, are not crabs, but are related to scorpions, spiders, and extinct trilobites.

Yes. The horseshoe crab's blood contains copper ions, and its source blood is blue. Cephalopods are also called blue-blooded animals because they have a unique circulatory system, and the vanadium contained in their blood appears to be blue.

Another characteristic of cephalopods is their unique circulatory system: 3 hearts that supply blue blood. They actually have only 1 true heart, which consists of 2 atria and 1 ventricle that receive oxygenated blood from the gills and supply the whole body.

The other 2 gill hearts receive venous blood from the periphery and transport it to the gills, where the carbon dioxide produced by the body is replaced by oxygen. The oxygenated blood that passes through the heart is dark blue, which is actually the color of vanadium contained in the blood.