Sezon 36
Grafiki
| # | Obraz | Tytuł | Wyemitowano |
|---|---|---|---|
| 1 |  | The Big Energy Gamble | 20 sty 2009 |
| 2 |  | The Incredible Journey of the Butterflies | 27 sty 2009 |
| 3 |  | The Spy Factory | 3 lut 2009 |
| 4 |  | Rat Attack | 24 lut 2009 |
| 5 | Extreme Ice | 24 mar 2009 | |
| 6 | Last Extinction (Megabeasts' Sudden Death) | 31 mar 2009 | |
| 7 |  | Doctors' Diaries (1) | 7 kwi 2009 |
| 8 |  | Doctors' Diaries (2) | 14 kwi 2009 |
| 9 |  | Musical Minds | 30 cze 2009 |
| 10 |  | Darwin's Darkest Hour | 6 paź 2009 |
| 11 | Hubble's Amazing Rescue | 13 paź 2009 | |
| 12 |  | Lizard Kings | 20 paź 2009 |
| 13 |  | Becoming Human Part 1: First Steps | 3 lis 2009 |
| 14 |  | Becoming Human Part 2: Birth of Humanity | 10 lis 2009 |
| 15 |  | Becoming Human Part 3: Last Human Standing | 17 lis 2009 |
| 16 |  | What Are Dreams? | 24 lis 2009 |
| 17 |  | What Darwin Never Knew | 29 gru 2009 |