Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 6 · Episode 32 ·
Fit to Live?
Horizon investigates the limits of survival under extreme and normal environmental conditions.
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Episode 32 of season 6 of Horizon: “Fit to Live?”. Aired 1969-11-24. Watch it online free on ZapFlix.