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

The prehistoric people started using fire about 250000 years ago and it has many benefits. At first the fire was scary, but early humans got used to it. They thought it was very interesting to look at lightening or volcanic eruption. The fire made prehistoric people keep warm. It scared away the animals and provided them with light. It was important for their social life. The early humans could now stay up late. The fire was used for cooking and keeping warm. Before the fire was invented the early humans ate raw meat and fire helped kill bacteria and toxins. The food also tasted better.