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Does brain size matter, in terms of intelligence?

One might think that brain size affect intelligence because one of the ways we differentiate ourselves from our earlier primates is by our larger brains.

But if bigger is better, does that mean we are only just a bit brighter than a walrus-which has a brain weighing 2.4 pounds compared to ours, at 2.7 pounds. Or, maybe we are much dumber than a sperm whale, which has a 17-pound brain.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.