Nature: Season 21
This season started on October 13, 2002. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Tall Blondes · 53 min | |
| 2 | Horse and Rider · 53 min | |
| 3 | Dive to the Abyss · 53 min | |
| 4 | Bloody Suckers · 53 min | |
| 5 | Trail of the Cougar · 53 min | |
| 6 | Under Antarctic Ice · 53 min | |
| 7 | The Reptiles: Alligators and Crocodiles · 53 min | |
| 8 | The Reptiles: Snakes · 53 min | |
| 9 | The Reptiles: Turtles and Tortoises · 53 min | |
| 10 | The Reptiles: Lizards · 53 min | |
| 11 | Lost World of the Holy Land · 53 min | |
| 12 | Leopards of Yala · 53 min | |
| 13 | A Mystery in Alaska · 53 min | |
| 14 | War Wrecks in the Coral Seas · 53 min |
