The Nature of Things

Waves / The Harp Seal / Blackfly (22x16)

Fecha de emisión: Mar 31, 1982

Waves: An update of the program "Freak Waves" originally broadcast in December 1980. A further look at research being done into wave formations that can destroy oil rigs on the open sea. The Harp Seal (repeat): The development of the Harp Seal is traced, from birth through nursing to its eventual migration northward. Blackfly (repeat): A look at disease and other problems caused by blackflies.