This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world.
| Actor | Role |
|---|---|
| NNina JablonskiNarrator | Narrator |
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This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world.
| Actor | Role |
|---|---|
| NNina JablonskiNarrator | Narrator |