Why do giant pandas eat bamboo? How much bamboo do you eat every day?

It's a giant panda beast. Why do you like to eat arrow bamboo? This is due to the long-term impact of the living environment, the lack of meat and gradually evolved into arrow bamboo-based. The giant panda belongs to the order Carnivora, a class of mammals, and its ancestors have sharp and developed canine teeth, short intestines, and digestive physiological characteristics of carnivores. In the process of evolution, the giant panda still retains these characteristics of its ancestors. Just because the living environment has changed a lot, gradually, they retreat to the deep mountains and bamboo forests, and live a hermit's life. As a result, modern giant pandas have become carnivores that eat bamboo. According to the thinking logic of zoologists, animals that originally ate meat, instead of eating bamboo, are generally difficult to adapt to and will withdraw from the ecology. However, the giant panda not only did the opposite, but also chose bamboo, one of the most difficult plants to digest, as its staple food, which can't help but surprise scientists. New research shows that the inactivation of a gene that can feel the freshness of food in the panda genome leads to the panda's inability to taste the freshness of meat, which is considered to be an important reason for pandas to eat bamboo instead. Of course, the antecedent reason is that pandas' living environment has changed, and they can't find meat, but just because bamboo is abundant, it gradually evolved to feed on bamboo. How giant pandas digest bamboo and how to use its nutrition has always been a mystery that countless people want to solve. A large number of ciliates were found in the gastric juice of giant pandas. Experts say that giant pandas' digestion of bamboo may be due to the role of ciliates. Giant pandas are very picky about their food. Because of the low nutrition and poor absorption capacity of bamboo, giant pandas need 10 to 16 hours a day to eat, and their foraging route is as long as one kilometer, and they consume as much as 15 to 30 kilograms of bamboo. Even in the cold winter, because we can't accumulate fat, we can't hibernate like bears, so we have to run around in the snow as usual. These out-and-out bamboo resource consumers live very hard. On the steep cliff, bamboo is very thin, which is not the habitat of giant pandas at all. Giant pandas like dense woods, eat bamboo with a lot of water, and the sun should cover at least half of them. If a giant panda passes by a cliff, it's just a migration on the road. They don't move on the cliffs at all. Those high mountain slopes that rise rapidly and then retreat slowly are the habitats of giant pandas. In history, the habitat of giant pandas has retreated countless times. There were no giant pandas in Minshan Mountain and Longmenshan Mountain tens of thousands of years ago, because no fossils could be found. The living environment of giant pandas used to be very wide, from Vietnam in the south to Beijing in the north. It's an ancient giant panda beast. According to legend, the Yellow Emperor defeated Yan Emperor, and with the help of the beast's power, the brave animal (panda alias) is one of them. After the glacier, the giant pandas in the north became extinct, and the giant pandas in Hubei and Hunan remained. The Ming and Qing Dynasties experienced a small glacier, and it was not until after the Taiping Heavenly Kingdom uprising that the small glacier passed, and the giant panda in Shenlongjia became extinct at that time. After several years of evolution, the giant panda retreated to the upper reaches of the Yangtze River, in Qinling Mountains, the birthplace of Hanshui River, Qionglai Mountain and Minshan Mountain, the birthplace of Minjiang River, and Yinghua Mountain, the tributary mountains of Dadu River and Jinsha River, the birthplace of Tuojiang River. The mountain where pandas live is the relic of Himalayan orogeny, and it is still a geologically active zone. Compared with their ancestors, modern giant pandas are obviously much more gentle. They have changed from omnivores to herbivores and only eat bamboo. Giant pandas retreat to Minshan Mountain and Qionglai Mountain, and their food is single, which makes them representatives of endangered animals that are sensitive to ecology.