Temporada 36
Imágenes
| # | Imagen | Título | Emitido |
|---|---|---|---|
| 1 |  | The Big Energy Gamble | 20 ene 2009 |
| 2 |  | The Incredible Journey of the Butterflies | 27 ene 2009 |
| 3 |  | The Spy Factory | 3 feb 2009 |
| 4 |  | Rat Attack | 24 feb 2009 |
| 5 | Extreme Ice | 24 mar 2009 | |
| 6 | Last Extinction (Megabeasts' Sudden Death) | 31 mar 2009 | |
| 7 |  | Doctors' Diaries (1) | 7 abr 2009 |
| 8 |  | Doctors' Diaries (2) | 14 abr 2009 |
| 9 |  | Musical Minds | 30 jun 2009 |
| 10 |  | Darwin's Darkest Hour | 6 oct 2009 |
| 11 | Hubble's Amazing Rescue | 13 oct 2009 | |
| 12 |  | Lizard Kings | 20 oct 2009 |
| 13 |  | Becoming Human Part 1: First Steps | 3 nov 2009 |
| 14 |  | Becoming Human Part 2: Birth of Humanity | 10 nov 2009 |
| 15 |  | Becoming Human Part 3: Last Human Standing | 17 nov 2009 |
| 16 |  | What Are Dreams? | 24 nov 2009 |
| 17 |  | What Darwin Never Knew | 29 dic 2009 |