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Byron B. Blackbear and the Scientific Method
1980·0h 14m·0/ 10·0 votes
This educational science program features the story of Dr. Alfred Clothear and his discovery of how bears know when to sleep for the winter.
Directed by Michael Sporn
This educational science program features the story of Dr. Alfred Clothear and his discovery of how bears know when to sleep for the winter.
Directed by Michael Sporn
