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  • S12.E1 ∙ Edgerton and His Incredible Seeing Machines
  • S12.E2 ∙ Global Village
  • S12.E3 ∙ Conquest of the Parasites
  • S12.E4 ∙ In the Land of the Polar Bears
  • S12.E5 ∙ AIDS: Chapter One
  • S12.E6 ∙ The Shape of Things
  • S12.E7 ∙ Baby Talk
  • S12.E8 ∙ The Mathematical Mystery Tour
  • S12.E9 ∙ Child's Play: Prodigies and Possibilities
  • S12.E10 ∙ Monarch of the Mountains
  • S12.E11 ∙ The National Science Test II
  • S12.E12 ∙ Seeds of Tomorrow
  • S12.E13 ∙ What Einstein Never Knew
  • S12.E14 ∙ The Robot Revolution?
  • S12.E15 ∙ The Magic of Special Effects
  • S12.E16 ∙ Child Survival: The Silent Emergency
  • S12.E17 ∙ Tornado!
  • S12.E18 ∙ The Genetic Gamble
  • S12.E19 ∙ Animal Architects
  • S12.E20 ∙ The Plane that Changed the World