Each of the twelve 50-minute episodes features a different aspect of the journey through life, from birth to adulthood and continuation of the species through reproduction.
| Directing | Mike Gunton | Director |
| Production | Peter Jones | Executive Producer |
| Production | Peter Jones | Producer |
| Production | Alastair Fothergill | Producer |
| Production | Mike Gunton | Producer |
| Production | Marion Zunz | Producer |
| Production | Keenan Smart | Producer |
| Sound | George Fenton | Music |
| Editing | Jo Payne | Editor |
| Editing | Chris Wade | Editor |
| Editing | Chris Orrell | Editor |
| Editing | Martin Elsbury | Editor |
| Art | Alison Murphy | Graphic Designer |
| Production | Rita Morris | Unit Manager |
| Sound | Graham Ross | Sound |
| Sound | Lyndon Bird | Sound |
| Sound | Donald MacIver | Sound |
| Sound | Trevor Gosling | Sound |
| Sound | Roger Long | Sound |
| Sound | Grace Atkins | Sound |
| Sound | Mike Burgess | Sound |
| Sound | Jan Aldenhoven | Sound |
| Sound | Nora Drufovka | Sound |
| Sound | Rogier Frederiks | Sound |
| Sound | Errol Samuelson | Sound |
| Sound | Susan Todd | Sound |
| Sound | Nigel Tucker | Sound |
| Sound | Bruce Wills | Sound |
| Sound | Mark A. Van Der Willigen | Sound |
| Editing | Luciano Marigo-Spitaleri | Colorist |
| Camera | Philip George | Drone Pilot |
| Editing | Angela Groves | Assistant Editor |
| Editing | Angela Gallagher | Assistant Editor |
| Editing | Simon Tucker | Assistant Editor |
| Production | Nick Upton | Researcher |
| Production | Chris McFarling | Researcher |
| Production | Rupert Barrington | Researcher |
| Production | Neil Lucas | Researcher |
| Production | Diana Richards | Production Assistant |
| Production | Ruth Flowers | Production Assistant |
| Production | Mary Summerill | Production Assistant |
| Production | Yvonne Webb | Production Secretary |
| Production | Gillian Baxendell | Production Assistant |
| Production | Sarah Byatt | Researcher |
| Production | Jan Aldenhoven | Researcher |
| Camera | Alan Goodall | Director of Photography |
| Camera | Alan Hayward | Director of Photography |
| Camera | Andrew Young | Director of Photography |
| Camera | Barrie Britton | Director of Photography |
| Camera | Bob Brown | Director of Photography |
| Camera | Brian McDairmont | Director of Photography |
| Camera | Chris Packham | Director of Photography |
| Camera | David Barlow | Director of Photography |
| Camera | David Curl | Director of Photography |
| Camera | Dion M. Casey | Director of Photography |
| Camera | Doug Allan | Director of Photography |
| Camera | Gavin Thurston | Director of Photography |
| Camera | Glen Carruthers | Director of Photography |
| Camera | Graham Frake | Director of Photography |
| Camera | Hugh Maynard | Director of Photography |
| Camera | Hugh Miles | Director of Photography |
| Camera | Ian McCarthy | Director of Photography |
| Camera | James Gray | Director of Photography |
| Camera | Jim Frazier | Director of Photography |
| Camera | Jonathan Watts | Director of Photography |
| Camera | Kevin Flay | Director of Photography |
| Camera | Kurt Hirschel | Director of Photography |
| Camera | Leonard Gilday | Director of Photography |
| Camera | Lindsay Cupper | Director of Photography |
| Camera | Martin Dorhn | Director of Photography |
| Camera | Martin Saunders | Director of Photography |
| Camera | Martin Singleton | Director of Photography |
| Camera | Martyn Colbeck | Director of Photography |
| Camera | Maurice Fisher | Director of Photography |
| Camera | Michael deGruy | Director of Photography |
| Camera | Michael Pitts | Director of Photography |
| Camera | Michael W. Richards | Director of Photography |
| Camera | Mike Herd | Director of Photography |
| Camera | Mike Potts | Director of Photography |
| Camera | Owen Newman | Director of Photography |
| Camera | Paul Atkins | Director of Photography |
| Camera | Paul Morris | Director of Photography |
| Camera | Peter Scoones | Director of Photography |
| Camera | Philip Lovel | Director of Photography |
| Camera | Red Denner | Director of Photography |
| Camera | Richard Ganniclifft | Director of Photography |
| Camera | Richard Gross | Director of Photography |
| Camera | Richard Kirby | Director of Photography |
| Camera | Richard Matthews | Director of Photography |
| Camera | Rick Rosenthal | Director of Photography |
| Camera | Rob Brownhill | Director of Photography |
| Camera | Rod Clarke | Director of Photography |
| Camera | Rodger Jackman | Director of Photography |
| Camera | Rodney Borland | Director of Photography |
| Camera | Rolf Moeltgen | Director of Photography |
| Camera | Ron Finne | Director of Photography |
| Camera | Simon King | Director of Photography |
| Camera | Stephen Bolwell | Director of Photography |
| Camera | Steve Downer | Director of Photography |
| Camera | Tim Shepherd | Director of Photography |
| Camera | Wade Nolan | Director of Photography |
