Cheetah's English name is Cheetah, which comes from the Hindi word Chita, and cheetah means spotted. Many people may have seen a cheetah in a wildlife park. Its trunk length is 1 to 1.5 meters, its tail length is .6 to .8 meters, its shoulder height is .7 to .9 meters, and its weight is generally 35 to 72 kilograms. The male cheetah is slightly larger than the female cheetah, and the color of the cheetah's back is light yellow. Its abdomen is lighter in color, usually white. As we said just now, Cheetah is called cheetah, which means spotted. So it has black spots all over its body, and there is a black stripe from the corner of its mouth to the corner of its eye. This stripe is a feature that we use to distinguish cheetahs from leopards.

The tail of a cheetah has a black ring pattern on the third part of its end. The hair on the back neck is long, like a short mane. Generally speaking, its body shape is slender, its legs are long, its head is small, its ears are short, and its pupils are round. Because the cheetah has this streamlined body shape, it looks very light when running. In addition, the cheetah's spine is very soft, and the outline of its body looks like a bronze work when it is standing or running, so some media listed the cheetah's back and hip curve as a natural heritage. How did the cheetah come from? As we all know, every species evolved from other species.

The fossils of the oldest cheetah in the world were found in Texas, Nevada and Wyoming in North America. At that time, cheetahs lived about 1, years ago. At that time, the world was the last ice age on the earth. The so-called ice age made the earth's climate cold. At both ends of the earth, the north and south poles were covered with large areas of glaciers, which was called the ice age. At that time, cheetahs were also widely distributed in Asia, Africa, Europe and North America. When the climate change during the ice age led to the death of a large number of animals, cheetahs in Europe and North America and cheetahs in parts of Asia and Africa were extinct.

how long does a cheetah live? People use radio collars to find that the life span of wild cheetahs is generally 6.9 years. But in captivity, cheetahs may survive for 11.7 years. The so-called radio tracking technology is to put a radio transmitter around the neck of an animal, and then according to the radio transmitter, one is to mark the animal and the other is to track the animal's activity range. Some radio transmitters can study the life span of animals if their life span is quite long.

In the animal kingdom, the systematic classification and positioning of cheetah is as follows: it belongs to Chordata, Mammalia, that is, it belongs to mammals. It belongs to Carnivora, and it also belongs to a carnivore. Cat, cheetah, cheetah is its species. It has two subspecies, one is African subspecies and the other is Asian subspecies. There are many African subspecies, and there are 9 thousand to 12 thousand. There are fewer Asian subspecies, which mainly live in Iran, and there are still about 3. According to biomolecular research, cheetahs, jaguars and golden cats appeared about 5.5 million years ago, that is, on the earth. Lions, tigers and cougars only appeared about 1.6 million years ago. Generally speaking, cheetahs can't climb trees. Unlike leopards, leopards can climb trees. Cheetah is not good at rock climbing because its paw was born outside, so it usually can't climb trees, at most, it is the kind of fallen wood that has fallen. So in Africa, sometimes I see some cats, just like cheetahs. If they are resting in a tree or waiting for their prey, they think they are cheetahs, but they are not. They are leopards. An American scientist named Stephen has studied the population structure of many wild animals. He found that the cheetahs in the world today are all relatively close individuals, that is to say, these cheetahs are descendants of some relatively close individuals and inbreeding. Because they are the offspring of inbreeding, their genetic structure is very similar, that is, their genetic composition is very similar, at least like twins. There is a related problem. Generally speaking, people especially hope to preserve more genetic diversity and hope that the genetic results of a species are more different. That species like cheetah, its genetic structure is already very small. But it can survive in the wild and has no symptoms at present. It means that this species is not in decline because of inbreeding, so it is a very strange phenomenon. Generally speaking, if a species is composed of highly inbred individuals, its viability is very weak.

Cheetah is relatively easy to domesticate and raise. The earliest domestication record in the world is semu, and they started to domesticate cheetahs at the earliest. Kyle Poirot once noticed that some interesting records were left in his travels. He once noticed that even outside the distribution area of cheetahs, many orientals keep cheetahs as pets. People regard cheetahs as hounds, as monsters, or even as mounts. In ancient Egypt more than 3, years ago, the royal family in Egypt liked cats, especially cheetahs. They raise cheetahs to hunt for them, but the breeding rate of cheetahs raised artificially is generally low. For example, there was once a Mongol empire in India, and an emperor named Abac built a zoo with thousands of cheetahs. According to records at that time, only one cheetah successfully bred offspring. Although cheetahs are easy to raise, people can train cheetahs to fetch things and go hunting. But generally speaking, cheetahs are still difficult to nurse, because they are active. Another word, because it doesn't have a fixed nest. So, people can only use cheetahs to hunt their prey. Usually, it is the hunter who covers the cheetah and takes it to a hunting place, so as to save the cheetah's physical strength. Then, when the prey is found at the site, the cheetah's headgear is taken off immediately, and then the cheetah is allowed to chase the prey. When a cheetah catches its prey, the hunter usually lets the cheetah share a small part of the prey or let it eat its blood.

Cheetahs live a regular life, usually at sunrise and rest at sunset. Generally, it starts to go out for food around five o'clock in the morning. When it walks, it is more alert. From time to time, it stops and looks around to see if there are any prey to prey on. On the other hand, it also prevents other beasts from preying on it. It usually takes a break at noon. When taking a nap, it gets up every 6 minutes, so it has to get up and have a look to see what dangers are around it. Generally speaking, cheetahs only kill one prey at a time, and the distance they walk every day is about five kilometers, at most more than ten kilometers. Although it is good at running, it doesn't walk far. Cheetah is the fastest animal running on land in the world at present, and its speed can reach 112 kilometers per hour. If the human sprint world champion competes with the cheetah in the 1-meter race, the cheetah can let the world champion run 6 meters first, and the cheetah will finally reach the finish line, not the sprint world champion. Why does it run so fast? Related to its body structure, one is its long legs and thin body. Another cheetah's spine is very soft and easy to bend, like a big spring. Even when it runs, you can see that its forelimbs and hind limbs are exerting force, and its body is also falling in the middle of running, so it runs very fast. When the cheetah is running, it needs a sharp turn, and its big tail plays a balancing role. It is when turning, the tail is balanced so that it does not fall. Because in nature, people give an image example, just like our human arms competition, you run fast and I have to run faster. Or if you want to arrest me, I must escape, or I may be wiped out after I am eaten by you. So the predator runs fast, and the prey must run faster, or there is another way. Generally speaking, because cheetahs run fast, other animals can't run faster than it, so they have to try their best. If you are like an antelope, it usually turns sharply and keeps turning sharply. Because if it runs straight, it can't run. So it had to run a few steps and turn, so the cheetah had to keep turning. At this time, the cheetah should keep its balance. If it doesn't fall, it must rely on its big tail to keep its balance.

However, it should be noted that since the cheetah runs so fast, it is a test for its whole body's respiratory system and circulatory system. When its running speed reaches more than 11 kilometers, its respiratory system and circulatory system are overloaded. As we all know, when an animal moves, it will generate a lot of heat in its body. Animals must get rid of this heat, just like humans, who sweat a lot or gasp when running. On the one hand, oxygen is inhaled, on the other hand, some heat is also discharged through venting, and some heat is also discharged through perspiration. Because the cheetah can't get rid of the accumulated heat at once, it is prone to collapse symptoms, so the cheetah can only sprint for a few hundred meters, and it slows down. Otherwise, it will overheat and then collapse. So this kind of running is very debilitating. Sometimes the cheetah catches its prey, because it just ran too fast, so it can't eat at that time. It has to take a rest or catch its breath before it can start eating. This time is the most vulnerable time for a cheetah, probably because its prey is likely to be taken away by nearby lions or leopards, and even it is worried about its own life. If lions are too hungry, or a group of lions have not eaten for a long time, then those lions may take cheetahs as their prey.

Cheetahs have sharp teeth, but compared with other big cats, cheetahs have smaller teeth. This is what we said earlier. The cheetah's head is relatively small. If the cheetah's head is relatively small, its upper jaw is relatively small, so it can't grow very long roots. In addition, it is impossible for its teeth to become very long. As we all know, if the teeth are very long, they need very long roots to be difficult to break. If the root of the tooth is short and the exposed part of the tooth is long, it is easy to break when biting something. So, cheetah's teeth are relatively small. So the whole cheetah's body structure seems to be designed for the feature of running fast, which was designed by the designer nature. We call it survival competition because natural selection forced it to become like this, and it was designed to run faster. We say that a long time ago, that is, 1 thousand years ago, its ancestors were still very large, but those ancestors died out because they did not adapt to the environment. These cheetahs that are left behind now, they all run very fast, and their body structure has also undergone great variation. Because it consumes a lot of oxygen when it runs, in order to absorb more oxygen, the cheetah has a big nasal cavity. Therefore, there is not much room to grow roots in its skull, so its teeth are shorter. If its teeth are short, as we all know, carnivores fight with their claws and teeth, so this affects its fighting ability.

In nature, cheetahs are often defeated by some big cats, such as lions, and may even be killed and eaten by lions. Because cheetah's teeth are short, cheetahs sometimes can't kill food with their teeth. Often relying on the lower jaw is to clamp the neck of the prey like pliers and suffocate the prey. The cheetah usually hunts like this: although it runs fast, because it runs a limited distance, it will try to get closer to its prey step by step when it hunts. Try not to let the prey find it. When it is close enough, it suddenly jumps out and pounces on the prey. At this time, the prey is caught by speed. If it can't catch it for the first time, the prey is likely to fail to catch it. Because the prey runs very fast, like an antelope. Another one is to be good at avoiding it, and keep turning sharply, which may avoid it. So when a cheetah catches an animal, it jumps out, and if the animal is close, it tries to stretch out its claws. Therefore, its claws are always exposed, and its claws try to catch the hind limbs of its prey, hoping to catch it down. Then jump on it and bite its neck to subdue its prey. Generally speaking, the large prey will die after the cheetah bites its prey's neck for five to ten minutes. After the prey died, the cheetah dragged the bodies of those prey to the middle of the jungle to eat.

When it comes to cheetahs, we can compare leopards, which are very similar to cheetahs. We can see that they are very similar in size, and even they are indistinguishable from each other from a distance. Unlike cheetahs, leopards like to climb trees. They like to climb trees to rest and sleep, or lie in wait among branches to catch prey. Leopard often preys at night. When the leopard comes down from the tree, it can pounce on its prey and rarely misses. So most of the time, the leopard we usually see stays in the tree, and it is usually hunted, just like animals like antelope, so it is not easy to see it. It is easy to find prey, and once the prey passes under the tree, it swoops down. When a leopard catches its prey, it is different from a cheetah. It likes to drag its prey to a tree. Hide its prey between branches and eat slowly. It does this to prevent hyenas or lions from grabbing its food. True in nature, although cheetah runs very fast, it often can't catch antelope and the animals it wants to prey on. Why is this? As we said earlier, the cheetah can run fast, but its distance is very limited, that is to say, it can only run a few hundred meters. Antelope is slower than cheetah, but its speed is also very fast, even if it runs every hour, it can reach about 9 kilometers. So once the antelope meets the cheetah, one of them runs in a hurry, and then turns after running in a hurry. Another is to use hills, grass, or jungle as a cover to run zigzag. So that the cheetah can't play its specialty of running fast, and then make its prey attempt to catch the air. This is the arms competition in nature, that is, the predator is fast, so the prey must run faster. Than the prey, or endurance, or escape with a trick. Otherwise, some species in the world will become extinct. For a cheetah, its own survival will be in danger because the antelope it eats is extinct. Therefore, nature, the creator, will not easily make a species extinct, so every species will have a chance to survive. You may have seen some lively scenes often happening on the African grasslands. Some large cats, like leopards, lions and cheetahs, will hunt down some of their prey, such as antelopes and wildebeests. This is actually a dynamic and energetic process. Because of what? It is an integral part of the evolution of nature, and some of them are weak, old and even sick individuals, which are eaten by these beasts. And these individuals who are preserved are generally healthy and strong individuals. They may escape the predation of these beasts, so this is an organic link in the biological chain of nature. Cheetah's social behavior is similar to that of other animals, and it has a same-sex cluster. The so-called same sex means that individuals of the same sex stay together. In the wild cheetah group, it is generally divided into male individual groups, that is, bachelor groups and female groups. There are also mother and son groups. Males usually live alone, or two or three, except in the breeding season.