How does the use of fire demonstrate prehistoric people's ability to adapt to their environment?

Fire helped prehistoric people to adapt to there surroundings and environment in many ways. Fire gave warmth to people which helped them survive cold nights. It also enabled to have cooked food, when food is cooked the warmth gets rid of parasites, it's easier to digest and tastier. With fire people could stay awake after sundown and socialize, this is how oral tradition and beliefs started. With fire people could migrate to colder places, because they had something that gives them warmth. Fire could help people make new tools, an example is when people started using metal with fire they could shape it. I think fired changed people because with the use of it we expand our possibilities. Today fire is still very important.