Cast
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.
Frank Baxter (Acting)
Richard Carlson (Acting)
Mel Blanc (Acting)
Sterling Holloway (Acting)
Marvin Miller (Acting)
30 September 2022
4 March 2016
23 November 2020
6 December 2024
12 February 1998
31 October 2024
28 August 2021
20 January 2023
13 September 2011
1 January 2009
11 April 2024
14 October 2020
16 June 1966
1 April 1938
6 December 2023
29 April 1988
1 June 1982
8 September 1982
12 September 2024
22 November 2023
20 March 1957