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Episodes
| # | Title | Watch |
|---|---|---|
| 1 | A Matter of Self-Defense | Play |
| 2 | Bird Brain - The Mystery of Bird Navigation | Play |
| 3 | Never Too Late to Learn | Play |
| 4 | The Great Fish Hunt | Play |
| 5 | Pedal Power | Play |
| 6 | The Writing on the Wall | Playing |
| 7 | Where Did the Colorado Go? | Play |
| 8 | The Future Goes Boom | Play |
| 9 | Fusion: The Energy Promise | Play |
| 10 | The First Ten Years | Play |
| 11 | This Yankee Dodge Beats Mesmerism Hollow | Play |
| 12 | The Hunting of the Quark | Play |
| 13 | A Noah's Ark for Europe | Play |
| 14 | Bridges: When It Comes to the Crunch | Play |
| 15 | Search for Life | Play |
| 16 | The Secrets of Sleep | Play |
| 17 | Who Needs Skills? | Play |
| 18 | Hills of Promise | Play |
| 19 | The Race for the Double Helix | Play |
| 20 | The Immigrant Doctors | Play |
| 21 | Mines, Minerals and Men | Play |
| 22 | What Price Steak? | Play |
| 23 | Listen and Be Loyal | Play |
| 24 | Adam or Eve? | Play |
| 25 | An Unholy Scramble | Play |
| 26 | Do as You Are Told | Play |
| 27 | The First Signs of Washoe | Play |
| 28 | The Other Way | Play |
| 29 | The Greatest Advance Since the Wheel? | Play |
| 30 | Joey | Play |
| 31 | The Neglected Harvest | Play |
| 32 | How on Earth Did They Do That? | Play |
| 33 | The Lysenko Affair | Play |
