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48min - A colony of emperor penguins in Atka Bay try to keep themselves alive through the winter.
49min - A painted wolf matriarch's feud with her daughter threatens to bring the dynasty down.
50min - A tigress must protect her cubs while battling rivals who want to steal her lands.
49min - David, a chimpanzee alpha in Senegal, tries to overcome threats to his leadership.
Episode 1: Chimpanzee
50min - In Senegal, an alpha male chimpanzee finds himself surrounded by rivals who want his crown.