00497nam a2200085Ia 4500008004100000245003200041300027200073650001300345856005300358170517s9999    xx            000 0 und d 4aThe Mystery of the Jurassic  aFor years scientists have been trying to find the mysterious evolutionary master key responsible for transforming the dinosaurs into world-beaters. In the early Jurassic, 200 million years ago, they were a relatively small group of primitive creatures. By the late...  xScience.  uhttp://topdocumentaryfilms.com/mystery-jurassic/