

Where Did We Come From?
Clip: Season 5 Episode 5 | 51m 48sVideo has Closed Captions
Explore the origin of our solar system and the start of life itself.
Explore the origin of our solar system and the start of life itself, how head lice figure in human evolution, and more.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by George D. Smith.

Where Did We Come From?
Clip: Season 5 Episode 5 | 51m 48sVideo has Closed Captions
Explore the origin of our solar system and the start of life itself, how head lice figure in human evolution, and more.
Problems playing video? | Closed Captioning Feedback
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Learn Moreabout PBS online sponsorshipClip: S5 Ep5 | 14m 18s | Can we erase bad memories with a shot? This neurobiologist has glimpsed the possibility. (14m 18s)
Clip: S5 Ep5 | 10m 52s | Icky and itchy, yes, but lice hold important clues to human evolution. (10m 52s)
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Follow lions, leopards and cheetahs day and night In Botswana’s wild Okavango Delta.
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Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by George D. Smith.