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1980

14min 0

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This educational science program features the story of Dr. Alfred Clothear and his discovery of how bears know when to sleep for the winter.

Cast

Géneros

This educational science program features the story of Dr. Alfred Clothear and his discovery of how bears know when to sleep for the winter.

Ver Cast

Géneros

Cast

Phillip Schopper

Phillip Schopper

Helena Rubinstein

Helena Rubinstein

John Canemaker

🎬 Pelis Harvey

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