1. First of all, you clearly don't understand what a mutation is. Technically, our DNA is 100% mutated. Whether we call something a mutation or not depends on our point of reference. For example, a monkey might give birth to offspring in which it's DNA is mutated and it has a faster metabolism. However, the DNA of it's parents is the result of mutations from its ancestors somewhere down the line.
2. Ancient man was not more intelligent than we are today.
2. Ancient man was not more intelligent than we are today.