Pavlov’s dog used to drool before he got fed. This pug has a different reaction. Every time the ball squeaks, the dog licks his nose. Apart from being ridiculously cute, this pug proves that

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Pavlov’s dog used to drool before he got fed. This pug has a different reaction. Every time the ball squeaks, the dog licks his nose. Apart from being ridiculously cute, this pug proves that classical conditioning is a proven theory, as long as a squeaky ball is involved. Credit: Gary Moss.

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Sun, Sep 29, 2013 8:20 AM EDT