There are more questions than answers in this collection of scientific puzzles.
NASA films, animation, computers and other aids illustrate such mysteries as dolphin language, functions of the brain, and UFO's. Other topics are turtle migration, community life among baboons, cell division and embryonic growth, continental drift, the possibility of life on other worlds, and ancient slabs at Mystery Hill, N.H., that may be related to England's Stonehedge.
More than 20 scientific authorities (including writer Isaac Asimov and Dr. Jonas Salk) discuss the puzzles.
Arthur C. Clarke, author of "2001: A Space Odyssey," is the host. Script by Clifton Fadiman. Narrated by Rod Serling.