Only 5 to 7 million years ago humans began to surface the earth. At first humans were treated as the prey of the animal kingdom and now cover more of the world than most animals do. The humans grew higher in the food chain when they found the first weapon, fire.  This tool helped humans through some tough times and helped them to stay alive. Through the many years and it helped make iron and weapons.Over the years we developed new types of technology and a new way a living.