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In general, the front teeth of animals will stop when they grow to a certain extent, otherwise the mouth will not close. Rats, on the other hand, are rodents with a pair of developed incisors in their upper and lower jaws, and a cavity under the incisors that will not close for life, so the teeth will continue to grow rapidly, and can grow several centimeters in an average week.
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Rats are rodents, its incisors have no tooth roots, can grow all the time, if not grinded off, think of a certain extent, rats not only eat but also may damage their own body, so rats will often grind their teeth.
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In order to prevent the rodents from piercing the roof of the jaw and making it impossible to eat, the rats need to constantly gnaw on hard objects such as wood to grind their teeth.
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The rat grinds its teeth because its teeth have become longer, and it is difficult to eat things after they become longer, so it needs to grind its teeth to facilitate eating.
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Because rats are rodents with incisors without roots and can grow throughout their lives, they must be worn out to achieve a balanced growth. If two opposite incisors do not meet, it can have serious consequences. This unique molarism makes the teeth very sharp and effective.
Appearance characteristics: the main characteristics are that the body is tapered, no canine teeth, there is a gap between the incisors and the premolars or molars, the incisors are developed, there are no tooth roots, lifelong growth, common rodents are shortened, fast action, plants are the staple food, and some are omnivorous.
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Rats are rodents, their lower teeth are infinitely growing, and their teeth grow quickly, so in order to prevent the rodents from piercing the upper jaw and making it impossible to eat, rats need to constantly gnaw on hard objects such as wood to grind their teeth.
The damage caused to human property by grinding teeth of rats is also immeasurable: furniture, wires and other things cannot escape its "poisonous mouth". Obviously, this deepened everyone's disgust with it. But why do they grind their teeth? Here's why.
01 Rats are mammals, rodents, rodents, commonly known as "rats", and are the fastest reproducing and very survivable animals among mammals. There are about 3,000 species of rats in the world, and their tracks can be seen both indoors and in the wild. The diet of rats is very mixed, there are many things that people like to eat, almost everything people eat, sour, sweet, bitter, spicy are not afraid, but the most favorite food is cereals, melon seeds, peanuts and fried food.
And according to the investigation, an adult mouse can eat two or two scorpions at a time, which is really bold. A rat can eat about 9kg of grain a year. The rat is adapted to the human environment, so it is a very successful species.
02 Rats are annoying because they spoil food and spread diseases, all of which seriously affect the daily life of humans. So, it has been on the blacklist that humans have vigorously removed, however, it has to be admitted that this is an extremely vigorous creature. Not only does it reproduce extremely fast, it is very adaptable, it does not require too much to eat, and it eats almost anything; It doesn't matter where it lives, it can settle anywhere; In addition, there will be 18 kinds of martial arts:
Digging holes, climbing trees, climbing mountains, wading through water, these are all difficult to overcome. It's no wonder that in the cartoon, the little mouse Jerry is portrayed as invincible, in real life it is an all-rounder, this animal family can be described as fighting but not dying, hitting but not breaking.
03 Studies have shown that due to their special tooth structure, the front teeth of mice can grow for life, and the growth rate is very fast. We all know that the main substance that forms a tooth is the hard dentine, and every tooth has a cavity in the dentine, the so-called pulp cavity. In general, the lower end of the pulp cavity of a newly erupted tooth is open, and blood vessels and nerves are accessed.
Once the tooth grows, the lower end is closed, the dentin is no longer secreted, and the tooth stops growing. However, the bottom of the pulp cavity of the mouse tooth is not closed and can grow for life. In order not to interfere with feeding, the rats had to bite to shorten the two pairs of front teeth, otherwise they would starve to death.
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1. Why do rats grind their teeth?
Rats are rodents that have four special incisors that grow very rapidly and grow about every week. Rats need to constantly grind their incisors in order to maintain their length and sharpness, which is the main reason for molars.
The incisors are an extremely important tool in the life of a mouse. In the wild town of Laxiang, rats use their front teeth to bite through food builds, dig burrows and hide from predators. Since the success of rats in surviving and reproducing in the wild is directly related to their front teeth, rats need to grind their teeth constantly.
2. Teeth grinding and health in mice
Rats need to grind their teeth in order to keep them healthy. Unsharpened incisors can become an obstacle in the mouse's mouth, causing inconvenience and even disabling when eating and drinking.
The spirit of the rat is also affected by the state of the incisors. If their incisors are not ground flat enough, their incisors will continue to grow, and rodents may experience discomfort and frustration in this situation, especially if there are not enough grinding props.
3. The time and manner of teeth grinding in mice
Mice are very flexible when and how they grind their teeth. They can grind their teeth anytime, anywhere, whenever they feel the need. Rats also grind their teeth in a variety of ways. They can bite hard objects such as wooden toys, cutlery, water basins, and even power wires to grind their incisors.
In the laboratory, the rat grinding prop is very important. These grinding tools are usually hard plastic blocks, wooden blocks, or hard objects such as horns and are easy to find. Lab staff need to ensure that the rats have access to teeth grinding, but also that the grinding tools do not cause problems such as disease, starvation or pain in the mice.
4. Mouse teeth grinding and humans
Modal teeth also have an effect on humans. Since rats need to grind their teeth constantly, they tend to bite down on indoor wood products, electrical wiring, etc. There are many things that humans can do to avoid this, such as using materials that are resistant to bite marks, keeping them neat and clean, and so on.
It is worth noting that the material of the grinding props is also particular. If a rat bites a harmful substance or a material with chemical carcinogens, then it can cause serious harm to the rat and the human body.
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Categories: Annoyances >> Dating Tips.
Problem description: Who knows? Analysis:
The front teeth of rats grow for life, and they grow very fast. This has to do with the structure of the rat's teeth. The main substance that forms a tooth is the hard dentin, and every tooth has a cavity in the dentine, the pulp cavity.
The lower end of the pulp cavity of a newly erupted tooth is open, and blood vessels and nerves enter from there. Once the tooth is formed, the lower end is closed, the dentine is no longer secreted, and the tooth stops growing. The bottom of the pulp cavity of the rat's teeth is not closed and can grow for life, which makes the rat have the habit of grinding their teeth frequently.
Otherwise, the teeth are too long and they will not be able to eat.
Overall, there are three types of animal teeth:
Incisors: like a kitchen knife, used to cut food, similar to a person's front teeth;
Molars: Like a small grinding disc, used to grind food, similar to human canine (allar) teeth.
Fangs: Like short, thick awls, they can be used to tear food.
Animal teeth are closely related to feeding habits and digestive enzymes in the body.
Food animals such as tigers, leopards and other felines have very well-developed fangs, and their intestines are lacking.
Less digest the biological enzymes of plants, can not digest and absorb plants, so they are only suitable for eating meat. Herbivorous.
Animals such as elephants, giraffes, zebras, antelopes, etc., have well-developed molars, while the fangs are relatively small or even none, and are only suitable for slowly chewing and swallowing dry foods such as grass and leaves, and the tendons in the meat.
But he couldn't swallow it. The biological enzymes in their stomachs are well adapted to digest the fiber in grasses, so they are suitable for eating grass.
In nature, herbivores are often eaten by carnivores, but most herbivores escape.
The instinct to hunt, so that animals in nature have always maintained ecological balance.
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What do rats use to grind their teeth
Rats are a common rodent that grows their teeth constantly. Therefore, rats need to grind their teeth constantly to maintain the proper length and shape of their teeth so that they can bite their food better.
1. Characteristics of rat teeth
Rats have a pair of front teeth in both the upper and lower jaws, and the front teeth are very long and pointed, which are suitable for gnawing on hard objects, such as nuts, grains, etc. The front teeth have an orange hard enamel on the outside and a soft dentin on the inside.
Other teeth of rats are shorter and tend to be used to chew and chop food, such as fruits and vegetables. Their chewing teeth have sharp edges and multiple edges that help grind food.
2. Rats use hard objects to grind their teeth
Rats use hard objects around them to grind their teeth. For example, they often gnaw on items such as wood, twigs, toys, etc., to help grind away parts of their teeth. Scientists who raise rats in the laboratory will provide some hard objects, such as raw bones and calcium tablets, to help the mice grind their teeth.
3. Rats use food to grind their teeth
In addition to hard objects, rats also use food to grind their teeth. For example, cellulose, hard seeds, and grains contained in food can help mice grind their teeth. Rats, on the other hand, do not like to eat foods that are too sweet and too soft, because these foods are not conducive to teeth grinding.
4. The importance of mouse's teeth grinding
Rats must maintain proper tooth length and shape, otherwise the food will not be able to eat properly and may even result in not being able to survive properly. And, if rats can't grind their teeth, their front teeth can become very long, which not only affects feeding, but also makes the rats feel pain.
Therefore, it is very important for rats to grind their teeth, and people need to provide appropriate hard objects and food to help rats grind their teeth and maintain healthy teeth.
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There is a folk saying that "each of the 12 zodiac signs has a deficiency": the rat has no teeth, the ox has no teeth, the tiger has no neck, the rabbit has no lips, the dragon has no ears, the snake has no feet, the horse has no guts, the sheep has no pupils, the monkey has no gills, the chicken has no kidneys, the dog has no taste, and the pig has no longevity.
Ye Shijie of the Ming Dynasty in "Grass and Wood" ( Grass and Wood Roll II.
Hook Xuan), the artist with twelve Xiao with twelve Chen. Each Xiao has its own shortcomings. Like a rat without teeth.
Fingerless cows have no teeth. Tiger has no spleen. Rabbits have no lips.
Dragons have no ears. The snake has no feet. Horses have no guts.
Sheep are godless. Monkeys have no buttocks. Chickens have no kidneys.
Canines have no intestines. Pigs have no tendons. There is no shortage of people.
From "people are not deficient also." From the point of view, the ancients put forward a deficiency of each animal on the premise of comparing the animals of the zodiac with human beings themselves as the standard. Let's analyze whether there is a scientific reason for each of the "12 zodiac signs".
Are rats really toothless? Before analyzing the "lack" of rat toothlessness, let's first understand the concept of ancient teeth and teeth. The ancients said that "teeth" and "teeth" were separated, and the teeth pointed out. Mortar. Tooth.
See. Say. Wen. Segment.
Concentrate. Also. It is. Two.
Side. Say. Tooth. While.
Middle. Say. Tooth. See.
Root. Grass. Class. Eye. Therefore, in ancient times, "teeth" actually referred to the teeth inside us, and "teeth" actually referred to our front teeth. Therefore, the ancients had a distinction between "tooth sound" and "tooth sound" for the pronunciation of characters. For example:
Lips are dead and teeth are cold, and the "teeth" here refer to the front teeth, and if we take it literally, you can imagine why the "teeth" here refer to the front teeth, if our lips are gone, the front teeth are exposed. The number of teeth in the toothless rat is relatively small, and the canine teeth are missing.
Rodents are rodentia animals, which have the largest variety and number of rodents among mammals and are distributed all over the world. The main characteristics are: small and medium-sized body.
The upper and lower jaws each have 1 pair of incisors, which are chiseled and grow for life; No canine teeth (canine tooth vacanine). Rodents do not have premolars. There is a wide tooth gap between the incisors and molars (premolars and molars).
The tooth type is: the human tooth type:
For example, if someone takes fruit to eat, everyone thinks it is particularly ridiculous, because it is very close to the habit of rodents to eat, rodents have two large incisors in front, because there are no canine teeth, the middle of the incisors to the inside of the back molars is empty, compared with humans, rodents and human teeth correspond to 4 incisors, 4 canines and 8 premolars, and the total number of teeth is 16. That's only half of the 32 human teeth.
Therefore, rats must use their incisors to knock, and after knocking, they are stored in two buccal pouches, and they are slowly ground and eaten with molars. It's like a flower squirrel. Since the ancients observed the difference between rat and human teeth, especially the fact that rats do not have canine teeth to tear food, since canine teeth are the closest to the incisors of the "teeth", "rat toothless" mainly refers to rats without canine teeth.
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