Dog owners now have scientific data to back them in the eternal debate over whether dogs really are smarter than cats.

A study led by a Vanderbilt University professor counted for the first time the number of cortical neurons in the brains of cats and dogs and found that dogs possess nearly double the amount of neurons compared to cats.

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Researchers at Vanderbilt University found that dogs have 530 million neurons in their cerebral cortex, while cats have

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