Season 1
Artwork
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | Natural Selection | Mar 30, 2013 |
| 2 |  | Instinct | Apr 6, 2013 |
| 3 |  | Variation Under Nature | Apr 13, 2013 |
| 4 |  | Effects of External Conditions | Apr 20, 2013 |
| 5 |  | Conditions of Existence | Apr 27, 2013 |
| 6 |  | Variations Under Domestication | May 4, 2013 |
| 7 |  | Parts Developed in an Unusual Manner | May 11, 2013 |
| 8 |  | Entangled Bank | May 18, 2013 |
| 9 |  | Unconscious Selection | May 25, 2013 |
| 10 |  | Endless Forms Most Beautiful | Jun 1, 2013 |