654.38+ 10,000 years ago, Homo sapiens began to spread from Africa, competing and colliding with the old or new humans already existing in other regions. Homo sapiens may occupy more resources and territory because of their higher intelligence and adaptability, squeezing the living space of other human beings.
There may have been violent confrontation between Homo sapiens and Neanderthals, which led to the death or escape of Neanderthals. There may be a similar situation between Homo sapiens and Denisova, but due to lack of evidence, it is impossible to determine. There may also be competition and conflict between Homo sapiens and Homo erectus, Australopithecus and PostAustralopithecus, but the influence may not be great because they live in different areas.
654.38 million years ago, Homo sapiens began to cross with other new or old humans and spread their genes to future generations. This hybridization may be voluntary, forced, or out of curiosity or love. As a result of hybridization, some new or old human genes were preserved, but they gradually disappeared as an independent species.
For example, the genes of Neanderthals and Denisovans still exist in some modern humans today, but they have become extinct as a species. Hybridization may also lead to some new or old humans being assimilated into the culture of Homo sapiens, giving up their original habits and traditions.
Basic conditions for human survival
1. Adequate material conditions: Human beings need basic material conditions to maintain their lives and production. This includes basic necessities such as food, water and shelter. These material conditions are the basis of people's life and the premise of people's activities such as production, work and study.
2. Necessary social conditions: Human beings need necessary social conditions to ensure a fair and just social order and a good social environment. This includes legal system, political system, education system, medical security, social security and so on. These social conditions provide people with a safe and stable social environment, enabling people to carry out activities such as production, work and study with peace of mind.
3. Rich cultural traditions: Humans need rich cultural traditions to enrich their spiritual world and promote social progress. This includes various cultural achievements such as art, literature, philosophy, science and technology. These cultural traditions not only provide spiritual food for people, but also help to promote the progress and development of human society.