Video 1: Archaea (2:58)
Video 1: Archaea (2:58)
Video 2: One of Nature's Most Amazing Sights (2:42)
Video 3: Bacteria (2:32)
Video 4: Bacteria Shape (3:54)
Video 5: What Is the Black Plague? (3:11)
Video 6: The Hidden Perils of Permafrost (3:11)
Video 7: Root Nodule Formation (1:30)