Pets

What common pet species can also be used refer to a "human test subject"?

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Which dog was depicted by the Han Dynasty as a hunting dog?
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What "designer dog" is a cross between a Beagle and a Pug?
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What is the name of the first American-born American Shorthair registered under this breed?
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In the Flintstones cartoon, what was Fred's pet dinosaur named?
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From the Ren and Stimpy cartoons, what dog breed was Ren?
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