When did Horizon Season 47 Episode 5 air?
Horizon Season 47 Episode 5 aired on November 10, 2009.
Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 47 · Episode 5
Why Do We Talk?
Nov 10, 2009·1h
Talking is something that is unique to humans, yet it still remains a mystery. Horizon meets the scientists beginning to unlock the secrets of speech - including a father who is filming every second of his son's first three years in order to discover how we learn to talk, the autistic savant who can speak more than 20 languages, and the first scientist to identify a gene that makes speech possible.
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How long is Horizon Season 47 Episode 5?
This episode runs for approximately 60 minutes.
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