A paleontology grad student named Robert DePalma has made perhaps the most important find of a trove of fossils ever. His Tanis site in North Dakota shows the remains of huge numbers of creatures killed within an hour of the comet or asteroid that struck the earth 66 million years ago, rendering dinosaurs extinct:
This find confirms the theory of dinosaur extinction put forward several decades ago by Luis Alvarez and his son Walter. Here are Walter Alvarez and DePalma (who, yes, is related to movie director Brian DePalma), looking pretty pleased with themselves:
So that appears to be the end of alternative theories for dinosaur extinction, such as Deccan Traps and furtive juvenile delinquent smoking.
Or maybe it was a “political process?”