What has been discovered about evolution since Darwin?

What has been discovered about evolution since Darwin?

Answer: 

A lot! Since Darwin died in 1882, findings from many fields have confirmed and greatly expanded on his ideas. We’ve learned that Earth is old enough for all known species to have evolved. We’ve discovered DNA, which confirms that all organisms are related to one another. And we’ve uncovered millions of fossils that provide evidence of how one life form evolved into another over time.