Nature is a magical land where many interesting creatures live. Do you know the treasure-filled acacia tree? Do you know the name of an animal with blue blood? Do you know whether E. coli is a bacterium that causes harm to the human body? The regeneration secret that has plagued scientists for years has been cracked by an animal, do you know who it is? Let's get closer to these interesting creatures, understand, love, and protect them.
Acacia tree
Acacia Tree (Image from the Internet)
Acacia trees are angiosperm native to tropical America, with yellow flowers and small leaves. Acacia trees are deciduous spiky shrubs or small trees, which were used as fences or decorative courtyards after they were introduced to Australia, so they are called "fence trees".
Acacia Tree (Image from the Internet)
Acacia trees can be said to be a treasure plant, their tree flowers, for the raw materials of high-grade fragrances, peel, bark and roots can be refined quercetin, resin can be used as a raw material for making glue and ink, can also be used in medicine, wood can be used to make valuable utensils.
Acacia Tree (Image from the Internet)
Acacia trees are also a plant that animals like to eat, especially after being introduced to the African continent, they became a favorite of giraffes. To prevent themselves from being eaten, most acacia trees have spikes and secrete a sap to attract belly ants to nest. Not only that, when the acacia tree detects that someone is eating its own leaves, it will secrete a toxic substance - tannic acid in about ten minutes, thus preventing the animals from continuing to eat their own leaves, and the animals are also very smart, generally after eating for about 10 minutes, they will change a tree.
newt
Salamander (image from the Internet)
The salamander, also known as the four-legged fish, is an amphibian. It is distributed in the South China Sea, Zhejiang, Tengchong and other places on the mainland. Salamanders are plump, cylindrical, moist and sticky, with short limbs, adults with eyes and faces that are active, and juveniles without faces.
Salamanders live mainly near puddles, ponds or rice paddies in hilly areas and have a habit of hibernating. Salamanders are benthic animals that crawl slowly, rarely swim, and feed mainly on underwater earthworms and mollusks.
Salamander (Image source network)
Salamanders have a strong vitality. In particular, its self-healing ability is very good. When an individual has a severed limb due to external injury, it will soon be gradually repaired and restored to its original state, leaving no scars. This superb regenerative ability has also deeply attracted many scientists, who try to crack the secret of the regenerative ability of salamanders and apply this ability to the treatment of human diseases.
鲎（hou）
Horseshoe crab (image from the Internet)
Horseshoe crab, also known as two in-laws, horseshoe crab, etc., is a national second-level protected animal. The ancestors of the horseshoe crab appeared in the Devonian Period, when dinosaurs had not yet appeared, primitive fish had just appeared, and the horseshoe crab was related to the extinct trilobite, so it was called a living fossil.
Horseshoe crab (image from the Internet)
Horseshoe crabs have four eyes, two single eyes and two compound eyes. The body consists of three parts: the head and chest, the abdomen and the tail of the sword. The diet of the horseshoe crab is very wide, mainly feeding on small beetles, molluscs, link animals, etc., and sometimes eating some organic detritus.
Horseshoe blood (image from the Internet)
The magic of the horseshoe crab is not only that it has existed for 400 million years, but also that it has blue blood, which can quickly detect whether there are bacterial infections inside the human body, whether there are toxins in the environment, and some scientists also use the blood of the horseshoe crab to study the treatment of cancer.
colibacillus
E. coli (image from the Internet)
E. coli, also known as Escherichia coli, is a prokaryote of the Phylum Proteus phylum. E. coli is divided into non-pathogenic E. coli and pathogenic E. coli according to whether it is pathogenic or not. And because it has a certain host specificity, pathogenic E. coli is divided into human pathogen E. coli, animal pathogen E. coli. Non-pathogenic E. coli are bacteria that normally inhabit the intestines of animals. They coexist with animals and maintain a stable environment within animals, and humans are no exception.
E. coli (Image source network)
Biologists are now gradually paying attention to the symbiotic microorganisms of the human body, trying to use them to regulate the stability of the internal environment of the human body, so as to achieve the purpose of prolonging human life and treating diseases, and even treating cancer.
E. coli (image from the Internet)
The stability of the internal environment can be understood by the Taoist balance of yin and yang. The human body is like a dynamic qi, and only by maintaining its dynamic balance can people be healthy. When the human body is sick, this dynamic balance is broken. The process of treating the disease is the process of restoring the dynamic balance. This can also be understood as to why infusions have been given when sick before, because infusions are a process of improving physiological metabolism and rebuilding homeostasis. Of course, this is a very simple understanding, because there are other substances in the liquids we are infusing. Therefore, when you are sick, you must go to the hospital, and when the body's homeostasis reaches the point where it cannot be restored, it can only be solved by surgery or waiting for death.
E. coli (image from the Internet)
Back to E. coli, it is a common microorganism in biology and biological production, and its reproductive ability is extremely strong, and it can reproduce a generation in about ten to twenty minutes. E. coli also contain plasmids, which are common tools for genetic engineering. E. coli is an extremely fascinating microorganism, and the charm they exude is deeply attracted to scientists.