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.
Cast
Crew
William T. Hurtz
Director, Animation Director
Frank Capra
Director, Writer, Producer
Frank P. Keller
Editor
Harold E. Wellman
Director of Photography
Arthur S. Black Jr.
Assistant Director
Joseph Sistrom
Associate Producer
Shamus Culhane
Animation
Archie Dattelbaum
Sound Effects
Raoul Kraushaar
Music Supervisor
Nancy Pitt
Researcher
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