Video "Super-Sizing Dinos"

Video "Super-Sizing Dinos" von "NationalGeographic" bei Youtube http://www.youtube.com/watch?v=opuNErn8F-w Beschreibung des Videoclips: Scientists study present-day animals in attempt to answer the question: what super-sized the dinosaurs? Weitere Videoclips von "NationalGeographic" unter http://www.youtube.com/user/NationalGeographic