| # | Title | Rating | Length |
|---|
| 1 | Chapter 23: "The Richness of Being", Part 3 | | 3:13 |
| 2 | Chapter 23: "The Richness of Being", Part 4 | | 2:53 |
| 3 | Chapter 23: "The Richness of Being", Part 5 | | 3:08 |
| 4 | Chapter 23: "The Richness of Being", Part 6 | | 2:54 |
| 5 | Chapter 23: "The Richness of Being", Part 7 | | 2:23 |
| 6 | Chapter 23: "The Richness of Being", Part 8 | | 2:42 |
| 7 | Chapter 23: "The Richness of Being", Part 9 | | 3:17 |
| 8 | Chapter 23: "The Richness of Being", Part 10 | | 3:19 |
| 9 | Chapter 23: "The Richness of Being", Part 11 | | 3:35 |
| 10 | Chapter 23: "The Richness of Being", Part 12 | | 3:01 |
| 11 | Chapter 23: "The Richness of Being", Part 13 | | 2:51 |
| 12 | Chapter 23: "The Richness of Being", Part 14 | | 2:54 |
| 13 | Chapter 23: "The Richness of Being", Part 15 | | 3:23 |
| 14 | Chapter 23: "The Richness of Being", Part 16 | | 3:09 |
| 15 | Chapter 24: "Cells", Part 1 | | 3:25 |
| 16 | Chapter 24: "Cells", Part 2 | | 3:08 |
| 17 | Chapter 24: "Cells", Part 3 | | 3:02 |
| 18 | Chapter 24: "Cells", Part 4 | | 3:14 |
| 19 | Chapter 24: "Cells", Part 5 | | 3:23 |
| 20 | Chapter 24: "Cells", Part 6 | | 2:26 |
| 21 | Chapter 24: "Cells", Part 7 | | 3:24 |
| 22 | Chapter 24: "Cells", Part 8 | | 2:05 |
| 23 | Chapter 25: "Darwin's Singular Notion", Part 1 | | 3:42 |