Overview
A visit to a deep network of underwater caves found offshore from the island of Andros, with Dr. George Benjamin, a Canadian research chemist and the world's foremost authority on the Bahamas' "blue holes" (underwater caves)
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12 - 1Banting, Best And Insulin October 04, 1971 -
12 - 2Cancer In Canada October 11, 1971
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12 - 3Parkinsonism October 25, 1971
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12 - 4The Fur Trade December 13, 1971
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12 - 5The Harp Seal January 03, 1972
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12 - 6Grouse Country January 10, 1972
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12 - 7The Polar Bear January 17, 1972
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12 - 8Lobsters and the Sea January 24, 1972
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12 - 9Vanishing Peoples: Yanomami January 31, 1972
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12 - 10The Blue Holes of Andros May 15, 1972