In zoology, giant pandas belong to the order Carnivora. According to research, the ancient names of giant pandas are tapir, tapir, and panda. From the pre-resurrection period of more than 2 million years ago to the middle and late resurrection period of 6.5438+0 million years ago, giant pandas have been widely distributed in the southern half of China, forming a giant panda-saber-toothed elephant fauna; Nowadays, many species in this fauna have been extinct, but the giant panda has survived, so the giant panda is called a "living fossil".
Pandas are classified as mammalian carnivores, but their eating habits are highly specialized, and they become vegetarians who eat bamboo. Panda, a unique way of life, is the result of long-term adaptation to natural and historical choices. Wild pandas live in rare mountains, deep valleys and dense forests and lead a leisurely life. The panda's activity mentioned here is to discuss the panda's nest domain and nuclear domain, activity rhythm and work and rest system, activity and energy consumption from the perspective of ecological research, and take countermeasures. Wild pandas live in dense forests. When they grow to a certain stage, they must mate and have children, that is, estrus, courtship, mating, pregnancy and childbirth. Pandas usually live alone. In the breeding season, males and females attract each other and sing love songs in the dense bamboo forest, thus starting various courtship activities. Panda is a multi-male competition. They have a small number of babies in their lifetime, and babies are not easy to survive. Due to the high specialization of giant panda's reproductive ability and feeding behavior, the population growth of giant pandas is very slow. If protection and management can't keep up, the number will decrease day by day.
The panda's staple food is bamboo, and he also likes to drink water. Most giant pandas live near streams and running water, so they can drink fresh water nearby. Giant pandas drink water at least once a day. In some places, although food is abundant and water resources are scarce, it is difficult to find giant pandas. In winter, when the running water in mountainous areas is frozen by ice, some giant pandas may travel long distances, go down the ditch, drink water in the valley, and then return home because they miss the hidden conditions and food base of their homes. Giant pandas always seek water from far and near, and walk out of an obvious drinking path day after day. When they reach the stream, they drink water by licking and sucking. If the stream is covered with thin ice or gravel, they break the ice with their front paws, or dig a shallow pit of about 25×20 with their paws to lick the water. Giant pandas mainly eat bamboo, but bamboo is difficult to digest and absorb. In this way, the energy intake of the giant panda is greatly limited, and all its activities should take into account the energy intake as much as possible and consume as little energy as possible.
Giant pandas are gentle and generally do not attack people or other animals actively. When giant pandas hear abnormal sounds, they usually run away immediately. When they can't escape, they will cover their faces with their front paws, lower their heads, bury them deeply between their front paws, and arch their backs as high as a boudoir lady. This gesture of the giant panda is a sign of fear or anger, but it does not take the initiative to attack. However, for the safety of the next generation, the panda who gave birth to the baby changed its docile temper and was very vigilant. No animals (including people) were allowed to get close to his sacred baby.
The giant panda's eyesight is extremely underdeveloped. This is because the giant panda lives in a dense bamboo forest for a long time, and the light is very dark and there are many obstacles, which makes its vision very short-sighted. In addition, because its pupils split longitudinally like cats. Therefore, when night falls, they can still act. (End)