Nova Season 2 Episode 1
Episode Title: Why Do Birds Sing?
Countries:
USA,
Airing Date: November 03, 1974
Runtime:54 mins
IMDb Rating:
Watch Nova Season 2 Episode 1 full movie online free in HD with English subtitles – no download needed.
NOVA : NOVA travels to forests and marshes to discover why birds sing and finds surprising parallels with the acquisition of speech in humans.