Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 13 · Episode 25 ·
The Selfish Gene
This Horizon documentary explores animal behavior. Animals do not act for the good of their own species, rather for the preservation of their own genes.
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Episode 25 of season 13 of Horizon: “The Selfish Gene”. Aired 1976-11-15. Watch it online free on ZapFlix.