4.4 / 10
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Plot Summary
Professor Groves, an expert in prehistoric life, proves his theories with an extract that'll regress a cat to a saber-tooth tiger and man to a Neanderthal.
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William Fawcett
Dr. Fairchild
Robert Bray
Tim Newcomb - cattle rancher
Richard Crane
Dr. Ross Harkness
Robert Shayne
Prof. Clifford Groves
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