On my visit to the Burke Museum I learned that Seattle has one of the best—if not THE best—preserved T. Rex skulls known to scientists. But I also learned that paleontologists still debate the purpose of the terrible lizard's tiny arms. They're not much longer than human arms! Why is that? It's a mystery. Some think the dinosaur used the tiny arms for slash attacks. Some think the arms are merely vestigial. But who cares what "some" think. The only thing that matters is what Slog readers think. That means it's time for a Slog poll.