" When Kilgore Trout accepted the Nobel Prize for Medicine in 1979, he declared: “Some people say there is no such thing as progress. The fact that human beings are now the only animals left on Earth, I confess, seems a confusing sort of victory. Those of you familiar with the nature of my earlier published works will understand why I mourned especially when the last beaver died. "

― Kurt Vonnegut Jr. , Breakfast of Champions