20x15: Nazis and the Russian Bomb
20x14: The Deadly Deception
20x13: Can Bombing Win a War?
20x11: Sex and the Single Rhino
20x09: Brain Transplant
20x08: Private Lives of Dolphins
20x06: This Old Pyramid
20x03: Mind of a Serial Killer
20x02: The Genius Behind the Bomb
20x01: Animal Olympians II
19x18: Eclipse of the Century
19x16: Rescuing Baby Whales
19x15: Making a Dishonest Buck
19x14: Can You Believe TV Ratings?
19x13: What Smells?