The story of evolution

Primitive man came to Earth and did not know anything about any of its sciences, so he began to search for adaptation to the nature of his environment, and the first thing he searched for was safety from ferocious beasts, so his first industry was to make spears from tree branches in order to defend himself with them, and to use them in hunting as well. Then he started looking for something to help him cook food, and he discovered fire by rubbing stones together. The third thing was the clo...