Cats vs Dogs ?

While pet parents of each respective animal will argue that their cat or dog is the smartest creature out there, it's dogs who have the numbers in their favor, according to recent findings in the journal Frontiers in Neuroanatomy.
The study—which was conducted by researchers from around the world (including the Copenhagen Zoo in Denmark)—concludes, among other findings, that dogs have more neurons than cats. Researchers found that dogs have over 500 million neurons in the cerebral cortex, compared to roughly 250 million in the cat's brain. (The researchers studied two dog brains and one cat brain.)
Though dogs don't have the largest brain in the animal kingdom, their intelligence is on par with that of raccoons or lions. For instance, a bear has roughly the same amount of neurons as a domestic cat.
So, is this the end-all, be-all when it comes to whether cats or dogs are smarter?
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