S3·E4 The Dolphins that Joined The Navy / A Theory of The Earth
Aired February 13, 1966
Synopsis
Horizon looks at the research of dolphins being conducted at a United States naval base in Port Magu, California. The research concentrates on the dolphin's abilities of navigation.
The eminent Canadian geologist, Professor Tuzo Wilson, explains his new 'Froth on the Broth' theory of the structure of the earth to David Wilson.