During the Paleolithic Age, early humans lived as nomadic hunters and gatherers, searching for food and regularly moving to find new sources. They hunted animals and gathered plants, adapting their lifestyle based on their environment. A major development was controlling fire, which provided warmth, cooked food, and allowed for smoking meat. During ice ages, fire was key to survival as humans faced threats of hunger, cold, and snow. Language, art, and religion developed as humans began to pass on knowledge through cave drawings and spoken communication. The first tools invented were made by hitting stones to create axes and spears for hunting, with smaller tools later developed like fish hooks and needles.