Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 9 · Episode 27 ·
The Billion-Dollar Marsh
This episode of Horizon is about the east coast marshes of America, called the "Wetlands" and the effects of urban development on the wildlife.
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Episode 27 of season 9 of Horizon: “The Billion-Dollar Marsh”. Aired 1972-11-09. Watch it online free on ZapFlix.