A key piece of evidence pointing to evolution is the fact that people today have no use for wisdom teeth and under normal circumstances end up having them extracted. But those teeth were once there for a reason: we simply don't need them anymore due to our advanced diet. Our ancestors had much larger jaws than we have today. They needed larger jaws with more molars (wisdom teeth) to allow them to chew their tough diet of roots, hard seeds, nuts and leaves. Wisdom teeth were the evolutionary response to adapt to the eating habits of our ancestors. Today we have tools to cut and break down food instead of an extra set of molars. We now eat a much softer diet than our ancestors once ate, and we don't need a bigger jaw. A study has shown that approximately 35% of humans today are born without wisdom teeth. These molars are on the verge of disappearing completely. This example shows how our bodies are adapting to accommodate our new