Overview
This episode of Horizon is about symbiosis - the close association between two or more species for their mutual benefit.
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13 - 1The Transplant Experience January 05, 1976 -
13 - 2Intimate Strangers January 12, 1976
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13 - 3A Fair Share of What Little We Have January 19, 1976
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13 - 4The Incredible Machine January 26, 1976
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13 - 5King Coal Revived February 02, 1976
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13 - 6A Question of Trust February 09, 1976
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13 - 7The Case of the Bermuda Triangle February 16, 1976
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13 - 8The Lords of the Labyrinth February 23, 1976
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13 - 9Inside the Shark March 01, 1976
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13 - 10The Chemical Dream March 08, 1976
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13 - 11The Edelin Affair March 15, 1976
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13 - 12The World of Margaret Mead March 22, 1976
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13 - 13The Pathway from Madness March 29, 1976
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13 - 14Geronimo's Children April 05, 1976
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13 - 15The Vision of the Blind April 12, 1976
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13 - 16A Lesson for Teachers April 26, 1976
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13 - 17Why Did Stuart Die? May 03, 1976
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13 - 18The Children of Peru May 17, 1976
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13 - 19Dying May 24, 1976
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13 - 20A Home Like Ours... A Story of Four Children June 07, 1976
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13 - 21What's Wrong with the Sun? June 14, 1976
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13 - 22The Bull's Eye War October 25, 1976
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13 - 23The Hot-Blooded Dinosaurs November 01, 1976
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13 - 24Billion Dollar Bubble November 08, 1976
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13 - 25The Selfish Gene November 15, 1976
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13 - 26A Child of Our Own November 22, 1976
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13 - 27Secrets of a Coral Island November 29, 1976
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13 - 28The Long Valley December 06, 1976
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13 - 29Half-Way to 1984 December 13, 1976
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13 - 30The Mystery of King Arthur and His Round Table December 20, 1976
