Horizon

Season 47 Episode 5: Why Do We Talk?

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.

Genre:

Documentary

Seasons:

62

Episodes:

1174

Cast:

Quality:

HD

Duration:

60 min

First Air:

1964

Rating:

7.5