Professor Frank Baxter and some animated friends answer questions about blood. what makes it red? Why do little animals' hearts beat so quickly? And so much more.
Made in US
8.1/10
1957
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Cast
Frank Baxter
As Himself
Richard Carlson
As Mr. Fiction Writer
Mel Blanc
As Squirrel / Turtle / Alligator / Rabbit (voice)
Sterling Holloway
As Lab assistant
Marvin Miller
As Hemo / Professor Anatomy
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