Riddle Of The Porpoise
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Reporter Grant Holcomb talks with Dr Kenneth Norris, curator of Marineland of the Pacific in California, about the sonar system of porpoises. Norris and his associate John Prescott demonstrate their studies about the nature and degree of sophistication of this sonar system, using a tame porpoise and research equipment.
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Sources
- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, year, creator, length, format, sound, description
- 16mm Filmography (legacy record) — catalog record
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