The Nature of Things: Season 40
This season started on October 4, 1999. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Phallacies | |
| 2 | How to Live to 100 | |
| 3 | The Hidden Killer: Portrait of an Epidemic | |
| 4 | Parkinson's: Lynda's Story | |
| 5 | Lost | |
| 6 | Designing for Dignity: Engineering Body Parts | |
| 7 | Race for the Future | |
| 8 | Race for the Future, Part 2 | |
| 9 | The Sleep Famine | |
| 10 | Do Parents Matter? | |
| 11 | Silent Sentinels | |
| 12 | Wild Goose Chase | |
| 13 | Humans: Who are We, Part 1 – The Birth of The Human Mind | |
| 14 | Humans: Who Are We?, Part 2 – The Human Invasion | |
| 15 | Weather: Dragons of Chaos |
