Scientist gives dinosaurs a nose job... Turning up his nose at a century of conventional wisdom, a scientist studying dinosaur fossils and the physiology of their closest living relatives has determined the creatures’ nostrils were perched near the end of their snouts and not toward the top of their heads. The research in Friday’s issue of the journal Science represents a fundamental change in the way scientists view dinosaurs — not only in their outward appearance but in several important traits.