Overview
Horizon investigates captive animal breeding to prevent extinction of animal species in the wild.
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11 - 1A Matter of Self-Defense January 07, 1974 -
11 - 2Bird Brain - The Mystery of Bird Navigation January 14, 1974
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11 - 3Never Too Late to Learn January 21, 1974
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11 - 4The Great Fish Hunt January 28, 1974
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11 - 5Pedal Power February 04, 1974
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11 - 6The Writing on the Wall February 11, 1974
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11 - 7Where Did the Colorado Go? February 18, 1974
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11 - 8The Future Goes Boom March 04, 1974
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11 - 9Fusion: The Energy Promise March 11, 1974
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11 - 10The First Ten Years April 22, 1974
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11 - 11This Yankee Dodge Beats Mesmerism Hollow April 29, 1974
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11 - 12The Hunting of the Quark May 06, 1974
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11 - 13A Noah's Ark for Europe May 13, 1974
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11 - 14Bridges: When It Comes to the Crunch June 03, 1974
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11 - 15Search for Life June 10, 1974
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11 - 16The Secrets of Sleep June 10, 1974
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11 - 17Who Needs Skills? June 24, 1974
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11 - 18Hills of Promise July 01, 1974
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11 - 19The Race for the Double Helix July 08, 1974
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11 - 20The Immigrant Doctors July 15, 1974
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11 - 21Mines, Minerals and Men July 22, 1974
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11 - 22What Price Steak? July 29, 1974
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11 - 23Listen and Be Loyal August 05, 1974
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11 - 24Adam or Eve? August 12, 1974
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11 - 25An Unholy Scramble September 02, 1974
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11 - 26Do as You Are Told October 28, 1974
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11 - 27The First Signs of Washoe November 04, 1974
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11 - 28The Other Way November 11, 1974
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11 - 29The Greatest Advance Since the Wheel? November 25, 1974
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11 - 30Joey December 09, 1974
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11 - 31The Neglected Harvest December 16, 1974
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11 - 32How on Earth Did They Do That? December 23, 1974
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11 - 33The Lysenko Affair December 30, 1974
