The Nature of Things — Season 18

E01 The People You Never See 14 Dec 1977 E02 The Evolution of Flight 21 Dec 1977 E03 The Geese of Wascana 28 Dec 1977 E04 Radiation (1): In Sickness and in Health 04 Jan 1978 E05 Radiation (2): Nuclear Power 11 Jan 1978 E06 The Cry Of The Gull 18 Jan 1978 E07 The Cry of the Gull / Island of Monkeys 18 Jan 1978 E08 Space Shuttle 25 Jan 1978 E09 Twins (1): and then There Were Two 01 Feb 1978 E10 Twins (2): Matching Genes 08 Feb 1978 E11 February 15, 1978 15 Feb 1978