Which dinosaur was the largest? What about the smallest? The oldest? These are questions that most children and quite a few adults have asked themselves. Answering such questions has never been easy, and doing so nowadays is even more troublesome. The science of paleontology is evolving at unprecedented speed. Constant discoveries are making many of our previously held beliefs outdated. Preventing one’s knowledge from becoming obsolete requires constant attention. New technology and the vast number of studies published each year suggest that a real revolution in dinosaur paleontology (dinosaurology) is occurring—so much so, that buying a book on dinosaurs published in 1995 is as useful to us today as having a look at a catalog of mobile phones from the year 2005.