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.
| Actor | Role |
|---|---|
 David AttenboroughSelf - Presenter | Self - Presenter |
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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.
| Actor | Role |
|---|---|
| David AttenboroughSelf - Presenter | Self - Presenter |