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Popular science panda, something you don't know?
What you don't know about popular science panda cold knowledge.

In 1 and 1869, giant pandas are called flower bears and bamboo bears. A French missionary found them and called them black and white bears, but they died in transit. After the specimens of giant pandas were seen by Europeans, they caused a sensation. 1936, the name of the giant panda is panda. The panda specimen was exhibited in Beibei Museum, Chongqing, Sichuan, and the word "panda" was written horizontally from left to right on the instruction board. But at that time, the horizontal headlines of newspapers were used to reading from right to left, so the reporter mistakenly wrote "Panda" in the report. Later, everyone called it Shunkou, but I couldn't change it, so I took the name panda.

2. 1936, an American woman named Ruth Hackles brought the first living giant panda to the United States and named it Su Lin. It was not until she boarded the ship that she registered the panda as a pug and passed the customs inspection. After landing in the United States, it caused a great sensation, shining more than any star.

People always like to tease giant pandas. The biggest dream is to have a color photo. There are really giant pandas hitting their faces. This is the only brown giant panda in the world: Qizai. Qizai was discovered in Foping National Nature Reserve in Shaanxi Province in 2009. According to scientists' speculation, due to some gene mutations and the particularity of geographical environment, it may also be an atavism phenomenon, which leads to the brown and white coat color of Qizi. However, in China, the brown giant panda has been found five times in the past 30 years, all in the same area. Qizai is the fifth giant panda discovered since 1985, and the only brown giant panda found alive at present.

All the giant pandas in the world come from China, and their habitat is only available in China.

Unlike other members of Xiong Ke, whose paws are almost dexterous, giant pandas can grasp their fingers flexibly to help them grasp bamboo and remove stems and leaves they don't like before eating.

6. Giant pandas have lived on the earth for at least 8 million years since their ancestors began the panda era. The bite force of pandas is amazing. It was once called an iron eater in ancient times, and it could chew iron pots.

7. Female giant pandas only ovulate once a year, and the mortality rate of wild cubs is 40%. Baby giant pandas weigh only about 140g at birth, and a female giant panda is 900 times larger than her cub at birth. They are almost white when they are born, and then gradually grow black and white hair.

8. Male panda cubs do not reach adulthood until they are about seven years old. Female pandas can give birth to one or two cubs every two years. Bear lives with his mother 18 months, and then takes risks by himself!

9. Adult giant pandas in captivity can weigh up to 200 kilograms, but only 50-80 kilograms in the wild. Panda's hair is thick and soft, as long as 10 cm.

Unlike most bears, giant pandas don't need to hibernate because their bamboo-based diet prevents them from storing enough fat in winter. When winter comes, they come down from the top of the mountain to find a warm place to eat bamboo and continue to eat!

1 1. Giant pandas began to eat bamboo when they were one year old. Adult giant pandas eat about 20 different kinds of bamboo. 99% of panda's food is made up of bamboo, but bamboo has no nutrition. It consumes at least 20 kilograms every day, which may take 16 hours to finish. They have to pull 40 times a day, and they can produce more than 50 kilograms of poop a day. Panda manure is an organic fertilizer. Panda's gastrointestinal absorption function is not good, and 70% nutrients are retained in the feces. In addition, many other nutritious foods have been added to the food of captive giant pandas, so the content of protein and crude fiber in their feces is very high, so they can be called organic fertilizer transporters.

There is a kind of tea in Sichuan called "Panda Tea", and the fertilizer applied is panda feces. Panda tea can sell for 440,000 yuan (1 kg). Some people say that panda poop has a faint bamboo fragrance, like zongzi, which is worth tasting. Newborn pandas will eat their mother's feces, because the intestines of panda cubs are sterile, and they must ingest the same kind of feces to obtain intestinal flora which is very important for survival.

12. Giant pandas have a keen sense of smell. Even at night, they can find the best bamboo stems by smell.

Giant pandas are omnivores, which means that their food includes plants and meat. But eating bamboo is the main dietary habit, but giant pandas also eat small animals such as bamboo rats and occasionally carrion.

14. The giant panda is a shy animal and likes to live alone. Giant pandas use their keen sense of smell to detect the smells of other giant pandas and avoid them. The only exception is that during the breeding season (March to May every year), males locate female giant pandas through their sense of smell.

15, China implemented a form of gift exchange dating back to the 7th century, in which pandas were leased to other countries for diplomatic purposes (previously as gifts). This practice is called "panda diplomacy".

16, there are about 2000 wild giant pandas at present.

17. The earliest known panda in the west is 1869. This spring, French missionary David received a panda fur coat in Dengchigou, Baoxing, Sichuan. He said, "This will be an interesting new species in science", and this discovery will fill a gap in the world's animals. Later, he sent the captured panda to France. Unfortunately, this panda died on the road because he couldn't stand turbulence and climate change. David made it into a specimen and sent it to the National Museum in Paris, France for exhibition. The world's first panda model specimen was made in this way.

18. Pandas have lived on the earth for two or three million years. According to the investigation of scientists, the ancestors of pandas appeared in the early days of the great flood 2-3 million years ago. Pandas are smaller than pandas today. Since then, pandas have adapted to the subtropical bamboo forest life, gradually getting bigger and living on bamboo. The giant panda reached its peak in the middle and late Pleistocene 500,000-700,000 years ago.

19. The life span of wild pandas is about 20 years. A one-year-old panda is equivalent to a three-year-old human. The average life expectancy of wild giant pandas is generally 15 years, and that of captive giant pandas is 17 years. It is said that the oldest panda in the panda family lived to be 37 years old, almost 100 years old of human beings.

Pandas look docile, but in fact they are fierce. Bamboo is the staple food of pandas. In addition to bamboo, pandas also eat wild fruits, insects, bamboo rats, takin and other animal carcasses. Animals living with giant pandas in bamboo forests include golden monkeys, takins and red pandas. They generally don't grab food and live in peace most of the time.

Although the giant panda seems to live in peace with the world, there are still some animals in its habitat that are enemies, such as golden cats, leopards, jackals, wolves and yellow-throated minks. But they mainly attack the cubs, the old, the weak and the sick of giant pandas, because young and strong giant pandas still have high martial arts. "They inherited the fierce temperament of their ancestors. Once provoked, they will fight back bravely.

2 1. In the illegal fur trading market, the value of panda fur is between 60000- 100000 dollars.

22. The estrus of female pandas is only about two days a year. Generally, the best time for female giant pandas to conceive is only 1~2 days per year. If you can't seize the opportunity to conceive in these two days, you will have to wait another year for the female giant panda to be pregnant with the red panda. No wonder the number of pandas is so rare!

In order to live comfortably, a panda usually needs about 4 square miles of space.

24. Pandas are experts in sports. They like climbing trees and swimming. Giant pandas often give people the feeling of being clumsy and dull. In fact, the giant panda is not stupid at all. They are all experts in climbing trees. When giant pandas were young, climbing trees and swimming were compulsory courses for them. They climb trees at least once a day: as long as there is water, they will swim as much as possible.

25. Pandas only lay eggs once a year. PierreComizzoli, a veterinarian and reproductive physiologist at the National Zoo in the United States, said that it is difficult for sperm to enter the female giant panda. Female giant pandas can only get pregnant once a year, and their eggs can only survive for 36 to 40 hours.

26, the male giant panda's xx kung fu is too poor. Keepers always encourage female pandas to conceive naturally during ovulation, but male pandas often don't cooperate. Although people often give male giant pandas a chance to reproduce naturally, at some point, people have to make a decision to carry out artificial insemination because they can't miss this opportunity.

27, pandas will also fake pregnancy. After artificial insemination, astrology is used to predict whether a female panda is pregnant. Whether the panda is pregnant or not, the progesterone level is the same, which will lead to false pregnancy. Even if the panda is not pregnant, some behaviors (nesting, sleeping for a long time, eating less) will only appear after pregnancy.

28. The laziness of giant pandas is beyond imagination. The metabolic level of a giant panda weighing 90 kg is less than half that of a human of the same weight. Giant pandas rest most of the day. Even when I am active, I usually walk about 20 meters per hour. Giant pandas eat bamboo, which is really a helpless move in the case of fierce food competition in nature and few people eat bamboo. Because bamboo is difficult to digest because of its low nutrition and energy, giant pandas eat a lot of bamboo every day to meet their life activities. At the same time, giant pandas also need to reduce energy consumption as much as possible, and eating more and moving less and staying there lazily every day has become a living habit of giant pandas.