Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 5 · Episode 2 ·
Man's Best Friend
This episode covers interviews with surgeons and research workers discussing the need for animal experimentation in medical work.
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Episode 2 of season 5 of Horizon: “Man's Best Friend”. Aired 1968-01-30. Watch it online free on ZapFlix.