The Neanderthal Man. 1953.
Professor Groves tries to cross genetic with a saber Tooth Tiger and a man.
We got another mad scientist movie this time played by Robert Shayne who tries to prove a theory right, in his mind it can work but doesn't go the way he wants it to and creates a slight abomination. I have never actually seen this before and yes it's a YT movie, may not be the best shock Sci-Fi horror flick but it decent enough for another viewing at some point.
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