How did Stone tools develop over time?

Stone tools evolved over time as humans developed more sophisticated techniques for shaping and sharpening stones. Initially, simple tools like choppers and scrapers were used for cutting and breaking, but later advancements led to the creation of tools like hand axes, spearheads, and arrowheads, which were more specialized and effective for hunting and crafting. The process of tool-making became more refined as humans experimented with different types of stone, techniques, and designs, resulting in tools that were more durable and versatile.