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NOVA. The question of how flowers evolved has long baffled scientists, but now a tantalizing fossil that bloomed during the reign of the dinosaurs has surfaced in China. NOVA probes the controversy ignited by this unique fossil, and pursues tha trail through the stunning lost world of China's remote Hengduan Mountains. In this spectacular landscape lie the origins of dozens of plants we take for granted today, including forsythia, clematis, rhododendrons, dogwoods, primroses, and the regal lily. This DVD includes materials and activities for educators. Grade 4 and up. 56 minutes. CC.