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Networks:
Watch Providers:
JustWatch makes it easy to find out where you can legally watch your favorite movies & TV shows online. Visit JustWatch for more information.
First Aired: December 10, 1980
Prenatal Diagnosis: Presents new techniques to examine the fetus while still in the womb to determine its sex and detect possible defects. Hearing in Chinchillas: A look at the similarities between the human ear and the ear of a chinchilla, and a study of how noise can permanently damage hearing in both. Chinchillas are subjected to loud tones and their inner ear membranes are examined for damage in an electron microscope.