The first one is the answer in nine dimensions. As a way of life, both nomadic industry and nomadic people originated very late. Take the Eurasian grassland as an example, the origin of nomadism was not earlier than the middle of 2000 BC. The nomadic cultural factors of the Great Wall in the northern part of the Warring States Period appeared or transformed into nomadic specialization during the Spring and Autumn Period and the Warring States Period, much later than the emergence of farming. As livestock, dogs can only spread from farming or hunting and gathering society to nomadic society, not the other way around.

Dog Rong is not a nomadic people, and the legend about the Yellow Emperor originated not earlier than the Warring States Period. At this time, the farming society already knew something about nomadism. This description can't explain the existence of nomadic industry in the period of the Yellow Emperor.

Dogs were domesticated by wolves and were the earliest domesticated animals of human beings. The earliest domestication began in the late Paleolithic period, much earlier than other domestic animals (chickens, pigs, sheep, goats, cattle, etc.). ), and there may be many domestication processes, rather than domestication in a single place, from there to the world.

Hunting and gathering were the main ways of livelihood in the Paleolithic Age, and there were evidences of livelihood pressure and specialized hunting in the late Paleolithic Age, such as the appearance of stone leaf technology and stone leaf tools, the wide application of compound tools, the broadening of recipes, the systematic utilization of large herbivores, the utilization of high-cost/profitable foods such as aquatic resources and wild plants, and so on.

Therefore, the domestication of dogs in this period may be used for: 1. Auxiliary hunting, indirect evidence such as the image of dogs in some rock paintings about hunting content, and the existence of dogs and hunting tools in some tombs; 2. As evidence of food reserves, such as dog bones found in human feces fossils, or dog bones found in eating utensils used by people, and traces of artificial modification on the surface of dog bones; 3. There is no direct evidence for guarding and guarding, but from the late Paleolithic to the early Holocene, it is also a period of gradual development of settlements and the formation of networked social relations. With the contact between groups and the enhancement of territorial awareness, it is very likely that dogs will be used to help guard.

If the initial change from wolf to dog is not a process of intentional choice, but a process of self-evolution, it is not easy to explain why dogs appear in archaeological materials.

More importantly, according to the treatment of human food scraps, a large number of animal bones should be found in the site-these bones were treated by people and then chewed by dogs.

With the close relationship between people and dogs and the development of social complexity, dogs also play an important role in sacrifice or other ceremonies.

The earliest dog found in China was unearthed at the Neolithic site in Jiahu, Wuyang, Henan Province (about 9000 years ago, it was also the earliest domestic animal in China). The evidence is mainly judged according to archaeological cultural phenomena, because 1 1 dogs were buried in residence and cemetery respectively, which was a conscious treatment of livestock at that time.

In the Neolithic Age, there was a custom that dogs were sacrificed and buried with them, mainly in Haidai area where Dawenkou culture-Longshan culture was distributed.

By the bronze age, there was no dog burial in Erlitou culture, and the custom of dog burial prevailed in tombs of Shang Dynasty. This custom was closely related to Yin adherents in the Western Zhou Dynasty, and basically disappeared after the Zhou Dynasty.

This is a unique cultural phenomenon in East Asia.

"Quli, Book of Rites" and other related documents record: "Dogs call the ceremony of offering sacrifices to ancestral temples' soup sacrifices'." Said: "Sacrifice, the ancestral temple is given the name of the dog, and the dog is fat." Duan Yucai case: "Tang's words are good; Those who offer this sacrifice are called dogs and beasts. " From the research, it is obvious that the age of dogs buried in tombs in the late Shang Dynasty is artificially selected, preferring young individuals, especially those under 1 year, while dogs under 2 months old are basically absent.

Under normal circumstances, it is impossible for the family of the deceased to have puppies at the funeral, which indirectly indicates that there may have been a large-scale dog industry at that time. Among the Oracle bones unearthed in Yin Ruins, there are 200 and 100 tribute dogs, such as "..."