From the introduction: This role-playing exercise casts students as scientific specialists, assigned to a group either supporting or opposing the cloning of dinosaurs. There are 4-6 specialists (or groups of specialists): geneticists, ecologists, etc., on each side. Each side researches for a couple of weeks and presents its argument in class (usually a single class period for each side), and other students can ask the specialists questions. Each student also turns in two pages summarizing his/her arguments as a specialist the day of the presentation. The material provided by the professor for research includes information about cloning technology and about dinosaurs.