A scientist develops a formula which will cause animals to regress to the form of their primitive ancestors, and tries it on himself with disastrous results.
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30-day Free TrialA scientist develops a formula which will cause animals to regress to the form of their primitive ancestors, and tries it on himself with disastrous results.
Robert Shayne ,Richard Crane ,Doris Merrick
Walter Koestler
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as Prof. Clifford Groves
as Dr. Ross Harkness
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