When did NOVA Season 15 Episode 21 air?
NOVA Season 15 Episode 21 aired on December 6, 1988 at 9 PM ET.


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.
The life of the shy, intelligent black bear in the wild—foraging, mating, playing and constantly preparing for its remarkable hibernation—is captured for the first time on film by NOVA.
Direct answers for episode-level questions and details.
NOVA Season 15 Episode 21 aired on December 6, 1988 at 9 PM ET.
This episode runs for approximately 55 minutes.
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