When did NOVA Season 4 Episode 13 air?
NOVA Season 4 Episode 13 aired on April 20, 1977 at 9 PM ET.
NOVA
PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.
Season 4 · Episode 13
The Business of Extinction
Aired Apr 20, 1977at 9PM·55m
NOVA explores the huge international illegal trade in animals, penetrates the thriving underworld of smugglers and assesses the effects on vanishing wildlife.
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How long is NOVA Season 4 Episode 13?
This episode runs for approximately 55 minutes.
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