Does the Northeast Tiger run fast? What is the acceleration time from 0 to 100 km per hour?

The running speed of the tiger can reach more than 20 meters per second, and the distance of 100 meters is instantaneous.

Speaking of tigers, everyone is familiar with them. They can be seen not only in zoos, but also in Asian cultures with a long history. To understand the tiger, we should start with its systematic evolution.

The systematic evolution of tigers is long and arduous. Tiger, native to China, is a large carnivorous beast unique to Asia. It is at the top of the pyramid of natural biological chain and plays an irreplaceable role in maintaining ecological balance. The scientific name of tiger is Panthera tigris, which is a species name. There are eight subspecies in the world, namely Bengal tiger, Li Haihu, Northeast tiger, South China tiger, Java tiger, Bali tiger, Sumatra tiger and Indian zhina tiger.

Tigers are typical mountain forest animals, which can live well from tropical rain forests and evergreen broad-leaved forests in the south to deciduous broad-leaved forests and mixed coniferous and broad-leaved forests in the north. In the northeast of China, it often appears in mountainous areas, such as ridges, undergrowth shrubs, rocks or gravel ponds. In order to facilitate predation.

Tigers have always lived alone and only get together during the breeding season. The estrus mating period is generally from June 1 1 day to February of the following year. In estrus, the tiger's cry is particularly loud and can spread to 2 kilometers away. An adult tigress gives birth to one fetus every 1-2, and the gestation period of each fetus is about 105 days, and each fetus has 1-5 offspring, usually 2 offspring. The newborn tiger cubs weigh about 0.5- 1 kg, and open their eyes for about 10 days. The lactation period is about 5-6 months (Northeast Tiger is about 3 months), and the young tiger lives alone with the mother tiger for 2-3 years (Northeast Tiger 18-24 months), and generally matures in 3 years.

Tigers have no fixed nests, and most of them wander in the mountains for food. He is alert and good at swimming, but he can't climb trees. Tigers are mostly active at dusk or early morning, and rest and lurk during the day, but in the cold winter, they also come out to hunt during the day (this situation is more common in China's northern subspecies such as Northeast Tiger).

Tigers have a large range of activities, generally 500-900 square kilometers, and the largest can reach more than 4,200 square kilometers. In the north, the range of foraging activities can reach tens of kilometers, while in Xishuangbanna in the south, the distance is short because of more food. They prey on ungulates such as wild boar, red deer, water deer, roe deer, musk deer and deer, occasionally prey on wild birds, and like to pick berries and large insects in summer and autumn.

The tiger's most complex attack weapon is its thick teeth and retractable claws. Predation is extremely fierce, rapid and decisive, and the principle is to consume the least energy to get as much as possible.

Tigers eat a lot, each time they eat meat 17-27 kg, and the big one can reach 35 kg per meal. The longest feeding life is 25 years. Because of the thick meat pad on his feet, the tiger rarely makes any noise when he moves, and he is very vigilant and concealed. When it walks in the snow, its hind foot can accurately step on the footprints of its front foot. Strong jumping ability, jumping about 5-7 meters, 2 meters high.

At the beginning of this century, there were thousands of tigers, especially in the northeast. Where there are mountains, there must be tigers. Now, what about those beasts that are all-powerful in the mountains and are famous for their beasts?

In fact, the tiger's current situation makes us hear not a frightening roar, but a faint cry for help. The actual situation is far worse than everyone thought. Due to the influence of human beings, the distribution area of tigers has gradually shrunk, and the number has also dropped sharply.

As early as 1930s, Balihu in Bali, India had disappeared without a trace. In the 1970s, the Lihai tiger disappeared completely. In 198 1 year, the last Java tiger on Java Island in Indonesia was also killed, thus declaring the extinction of another subspecies of tigers. The remaining five subspecies are also in danger. The Northeast Tiger and South China Tiger, which are produced in China, are also extremely endangered. Therefore, the Wildlife Protection Law and the Memorandum of National Key Protected Wild Animals promulgated and implemented by 1989 strictly protect tigers as protected animals, thus further confirming the protection status of all tiger subspecies.

Siberian tiger

The Siberian tiger is the largest of the eight tiger subspecies. It is long and heavy, fierce and powerful, and is called "the king among kings".

The Siberian tiger was once widely distributed in the northeast of China, but its distribution area has been greatly reduced in the past 30 years, and it was only found in the northeastern mountainous areas (Zhangguangcailing and Laoyeling) in the early 1980s. The Siberian tiger is a typical animal that lives in the forest. Its living environment is mainly coniferous and broad-leaved mixed forest or primitive broad-leaved forest. It also often looks for food in tall grass, or moves in places with rocks on ridges and hilltops.

Tigers are nocturnal animals. Most of them come out at night and rest in hidden places during the day, so most of the tigers people see during the day are sleeping in. Tigers are most active in the early morning or dusk, but in the cold winter, tigers also come out to feed during the day. The colorful Siberian tigers are particularly dazzling against the white snow, especially the tiger's power. If the weather is fine, you can also see the rare "Frost Tiger Wonder".

Most cats belong to semi-water repellent animals, but tigers are good at swimming, and their water quality is excellent. It is not a problem to swim five or six kilometers at a time. You can also dive into the water more than 4 meters deep in a short time to catch ducks. Tigers are fierce by nature. They mainly prey on large and medium-sized herbivores such as wild boar and deer, followed by rabbits, foxes and pheasants. Occasionally, bears, wolves and other wild animals are killed to satisfy their hunger. Of course, a tiger would never do it without sufficient assurance.

Tigers hunt in two ways: one is ambush. Use its developed sense of smell and hearing to determine the target, and then quietly lurk in the bushes. When the prey approached, it suddenly jumped up and swooped down, biting its throat and cervical vertebra with sharp teeth like knives, killing it quickly. The second is tracking and chasing. When the tiger finds fresh traces of animal activities, which may be footprints or smells, it will immediately follow the traces until it gets close to its prey. Once the target is found, it will crawl forward carefully until it is confirmed that the prey is within the effective attack distance. The tiger will pounce, and it is difficult for ordinary animals to escape from the tiger's jaws. The running speed of the tiger can reach more than 20 meters per second, and the distance of 100 meters is instantaneous. According to records, tigers are not always successful in hunting. Generally, it preys 10 times in the wild, and it is not easy to catch it once or twice (because it is big, explosive and fast, but lacks endurance). Usually a tiger will take or drag its prey to a hidden place to start its delicious meal. Most of the large animals that are caught are first bitten in places with thin skin and plenty of meat. After a full meal, no matter how many subjects are abandoned, they will never return. Tigers are very arrogant. They don't eat their own leftovers, let alone carrion.

Generally speaking, tigers over 4 years old are called adult tigers. The average age and life span of tigers is about 20 years, and they are sexually mature from 2.5 to 3 years old. 6-7-year-old tigers are equivalent to people's 30 years old and are in their prime.

Pure Siberian tiger fur is light yellow with black stripes. Compared with other subspecies, stripes are relatively sparse. The hair from the abdomen to the lumbar fossa is white, the black stripes on the head are dense, the snout is short and wide, and the central depressions on both sides of the frontal bone are arched. There are three to five black stripes on the forehead, and the middle thickens to form a "king". Many facial expressions in the play are derived from the facial expressions of tigers. Interestingly, the tiger's face, like human fingerprints, is unique to individuals, which means that no two tigers have the same face in the world. The characteristics of its eyes confirm that the tiger has a wide field of vision, but on the whole, it is not sensitive to static objects. Because the tiger's most frequent activity time is in the evening or dusk, it has excellent night vision ability. If there is light at night, a pair of eyes will show bright green reflection and can be seen from a distance. The most developed sensory organ of the Siberian tiger is the ear, which has keen hearing. With its high hearing ability, tigers can capture the slightest sound in the forest and feel all kinds of sounds made by different animals, branches, flowers and leaves. Once it recognizes the voice of its favorite prey, its ears will immediately turn to the direction of the voice and its expression will become focused. In the wild, the Siberian tiger can hear the cries of animals several kilometers away. The tiger's ears are short and round, black, and there is a white spot in the center, which is a unique sign and warning color of the Northeast Tiger and a sign that the young tiger follows the mother tiger in the jungle at night. When tigers fight with each other or find their prey ready to attack, their ears will turn away and two white spots will move forward. If ordinary animals see these white spots, they will shrink back.

The Northeast Tiger has 30 teeth, like a sharp knife, and does its job. The four canine teeth are strong and 3-5 cm long, which is equivalent to the thickness of the thumb. They can bite off the cervical vertebrae of large animals such as wild boar, or bite off the throat of prey and cut off the trachea of prey, which is an extremely important attack weapon for tigers. There are six front teeth in the upper and lower jaws, which are used to bite the fur of prey and pull it; There are 14 molars, which are used to cut off prey. Its bite force is very strong, reaching 400 kilograms, and it can even break the thigh bone of its prey. Tiger's limbs are very strong and muscular, and the muscle weight can account for about 70% of the whole body weight.

Tiger's feet are also typical of cats, with five toes on the front foot and four toes on the back foot. Toes are connected with hard and sharp Tiger Claw. Tiger Claw is also a powerful weapon for tigers to kill their prey. One paw can tear it apart. Moreover, Tiger Claw can freely expand and contract, and when walking, the claws retract into the claw sheath to avoid rubbing the ground. Tiger Claw also grows like a human nail. In order not to affect its own actions, it is difficult to move by puncturing the palm pad, so tigers often have the habit of grinding their claws. Palm pads or toe pads are soft and elastic, and tigers will fall silent when walking with thick palm pads. It is difficult for other animals to hear the tiger's footsteps, and when they hear them, the tiger is already lurking in front of them. In the wild, zoologists often rely on footprints in the snow to judge the age and sex of tigers. Generally, the paw pad width of adult male tiger is between10.5-1.5 ㎝, and that of female tiger is about 8.5-9.5 ㎝.

The tail of a tiger is about 1 m, accounting for half of its body length. There is a black circle on the tail and the tip is black. Legend has it that the tiger's tail is also its own defensive weapon, and its main function is to mediate the balance of the body and control the steering during high-speed movement. By carefully observing the performance of the tiger's tail, we can analyze the state and mood of the tiger at this time. If the tail tip is slightly tilted, shaking constantly, accompanied by a low roar, this is a danger signal. At this time, it is on alert and is not allowed to approach, otherwise it will be attacked; If the tail wags gently, accompanied by a nasal sound of "spray, spray", it means intimacy and friendliness. In addition, the tiger's tail plays a role in fighting mosquitoes and preventing bites at rest. As the saying goes, "the tiger's ass can't be touched", which is determined by the tiger's habit. Tigers are naturally cautious and suspicious, and their attacks are often launched on the back of their prey, so they know that the back is the weakest part of their whole body defense, so they never give up their back to their opponents when they feel it.

The tiger's body length is between 1.6-3 meters, and the male tiger is much larger than the female tiger. Adult male tigers generally weigh about 250-300 kg, the largest of which can reach more than 320 kg, and female tigers weigh about 150-200 kg.

The fur of the Siberian tiger is the lightest and thickest of the five tiger subspecies. In winter, the fur thickens. With its thick subcutaneous fat, it can resist the cold of -40℃-50℃. In summer, when thick hair is removed, it becomes shorter and thinner.

Northeast tiger is alert, withdrawn and suspicious, strong, agile and has strong walking ability. You can walk 80-90 kilometers day and night, and generally you can walk 20-50 kilometers when the snow layer is thick. Tigers also have strong jumping ability, with a jumping length of about 5-7 meters and a height of 2 meters. Tigers have no fixed nests and generally wander around, but they are territorial. Each wild Siberian tiger has its own sphere of influence, which is generally 500-900 square kilometers, and the largest can reach more than 4,200 square kilometers. Tigers divide their territories and regions by the smell of urine, saliva, bite marks and scratches they excrete on tree trunks, rocks and markers. These smells will last for a long time. Once the tiger smells these smells, it will immediately distinguish whether it is the same kind or some other animal, and whether this place belongs to its own territory. Under normal circumstances, tigers will not easily invade the territory of other tigers. The male tiger's sphere of influence allows the female tiger to pass, but it is not allowed to survive (except during mating). Other male tigers are absolutely not allowed to live, nor are they allowed to live. Once they invade the territory, they will be ruthlessly expelled.

The tiger's stomach has a strong digestive function. Everyone used to know the idiom "wolfing down" to describe people's eagerness and fierceness when eating. Tigers usually eat small pieces of food in one gulp, which is really fast. More than ten kilograms of beef strips have already entered the stomach in less than three or two minutes. The Siberian tiger not only eats fast, but also eats an amazing amount. It can eat 30-40 kilograms at a time, and it can go without eating for several days after a full meal.

Tigers are born with cleanliness. When they were two months old, they learned to borrow water as an excuse, wash their faces and comb their hair like domestic cats. In winter, they often roll in the snow and clean their fur by taking a snow bath. After every meal, they will lick their mouths and front paws with their tongues to clean up blood, residue and stains. The tongue of the Siberian tiger is quite special, and its front is covered with keratinized barbs. Tiger tongue is very important. It is not only a taste organ, but also plays the role of drinking water, licking and regulating body temperature. To some extent, it is equivalent to human hands, especially in the calving and lactation period of tigers, and the function of tongue is played more incisively and vividly in the tigress. At this time, the tongue can play a more delicate role in caressing and caring for the young than our human hands. It licks all the blood and fetal fluid from the newborn tiger cub first, then licks the fetal hair of the tiger cub dry, and often licks it on weekdays to stimulate its growth and development, gastrointestinal peristalsis, defecation, feces and so on. It is under the stimulation of the mother tiger's caress that the young tiger can grow up healthily.

The Siberian tiger lives in the cold north all the year round and is still active in the mountains at MINUS 30 degrees in winter. It is the king of kings. Heilongjiang Province is the hometown of the Northeast Tiger, and the vast virgin forest here provides a good living environment for the tiger. Now, it's hard to see the tracks of the Northeast Tiger there, and it's hard to hear the fierce roar of the Northeast Tiger!

At present, there are less than 500 Siberian tigers in the world, and it is estimated that there are less than 20 wild tigers, most of which are distributed in the Russian Far East, and only some mountainous areas in Heilongjiang and Jilin provinces are distributed in China. Moreover, the distribution area of these Siberian tigers is island-shaped, and it is difficult to communicate with each other ... In this way, after a few years, we can only see them in zoos and only see their specimens or pictures in museums!

In this case, China has established Jilin Hunchun Nature Reserve, which is specially used to protect Siberian tigers and leopards and their habitats. Since the establishment of the nature reserve, the management bureau of Hunchun Nature Reserve has monitored more than 60 tiger and leopard activities from June 5 to September 2004, and photographed the wild Amur tiger twice. The existing monitoring data prove that there are both male and female tiger activities in this area; There are both adult tiger activities and young tiger activities. The population of Siberian tigers has increased from 3-5 before the construction of the area to 4-7, and the range of activities has doubled! This makes the people concerned happy!

The tiger is one of the masterpieces of nature. Its body is thick and perfect, the strong muscles of its back and forelimbs fluctuate up and down during exercise, and its huge limbs move forward. It is so smooth and quiet that it looks like sliding in the jungle. It is elegant, beautiful, mysterious and fierce, and it is the best combination of strength and beauty in nature. Tigers are at the top of the food chain pyramid in the ecological environment system. It is the undisputed king of the animal kingdom, and its only natural enemy is ourselves! American George, director of the Science Department of the International Tiger Policy Committee? Xia Le once said such a thought-provoking sentence: "The future generation will feel really sad for this century's lack of foresight, sympathy and generosity for the future, which will make the most exciting and beautiful animals in the world disappear."