1. Warmth: Fire provided a source of warmth during cold nights and in cooler climates, allowing humans to survive in a wider range of environments.
2. Cooking: Fire allowed humans to cook food, making it easier to digest and extracting more nutrients from it. Cooked food also lasted longer, reducing the risk of spoilage.
3. Protection: Fire could be used to deter predators, both at night and during hunting expeditions.
4. Light: Fire provided a source of light, allowing humans to extend their activities into the night hours and explore caves and other dark areas.
5. Tool making: Fire could be used to harden wooden tools and weapons, making them more durable and effective.
6. Social bonding: Gathering around a fire created a sense of community and strengthened social bonds within human groups.