Change of behavior and skills
One of the most importa effects that had the construction of stone and metal dimensions on early humans was better access to food sources. Firefighting was another skill that led the early people to cook and heat the environme.
The more complexity of the social structure made the early humans need more advanced communication systems; As a result, language and symbolism gradually evolved. As social ieractions and social structures grew larger, concepts such as division of labor, cooperation and information exchange were created.
Changes in the nervous system
For a few million years, the brain and nervous system of humans gradually evolved, which led to the acquisition of cognitive skills, problem solving and abstract thinking. These advances played an importa role in the use of complex tools, the formation of culture and social relations.
