STORY
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
- Frank Baxter
- Richard Carlson
- Mel Blanc
- Sterling Holloway
- Marvin Miller
Cast
- William T. Hurtz
- Frank Capra
- Shamus Culhane
Directors
INFORMATION
Production Companies
Production Countries
LANGUAGES
- English
