David Attenborough examines the ways in which animals and plants adapt to their surroundings.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Building of the Earth | 1984-01-19 | 50 min |
| Season 1 | Episode 2 | The Frozen World | 1984-01-26 | 50 min |
| Season 1 | Episode 3 | The Northern Forests | 1984-02-02 | 50 min |
| Season 1 | Episode 4 | Jungle | 1984-02-09 | 50 min |
| Season 1 | Episode 5 | Seas of Grass | 1984-02-16 | 50 min |
| Season 1 | Episode 6 | The Baking Deserts | 1984-02-23 | 50 min |
| Season 1 | Episode 7 | The Sky Above | 1984-03-01 | 50 min |
| Season 1 | Episode 8 | Sweet Fresh Water | 1984-03-08 | 50 min |
| Season 1 | Episode 9 | The Margins of the Land | 1984-03-15 | 50 min |
| Season 1 | Episode 10 | Worlds Apart | 1984-03-22 | 50 min |
| Season 1 | Episode 11 | The Open Ocean | 1984-03-29 | 50 min |
| Season 1 | Episode 12 | New Worlds | 1984-04-06 | 50 min |
| Writing | David Attenborough | Writer |
| Production | Richard Brock | Executive Producer |
| Production | Richard Brock | Producer |
| Production | Ned Kelly | Producer |
| Production | Andrew Neal | Producer |
| Production | Adrian Warren | Producer |
