When did Horizon Season 0 Episode 105 air?
Horizon Season 0 Episode 105 aired on September 11, 2013.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Alice Roberts looks through 45 years of Horizon archive material to see how science came to understand sex, strived to solve our problems with it and even helped us do it better.
Direct answers for episode-level questions and details.
Horizon Season 0 Episode 105 aired on September 11, 2013.
This episode runs for approximately 60 minutes.
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