Bigger Brains Not Always Smarter

From Live Science:

More brains doesn't necessarily equal more smarts, a new comparison of animal noggins reveals.

Tiny insects could be as intelligent as much bigger animals, despite only having a brain the size of a pinhead, researchers argue in the Nov. 17 issue of the journal Current Biology.

The scientists found that past studies suggest larger animals may need bigger brains simply because there is more to control — for example they need to move bigger muscles and therefore need more and bigger nerves to move them, the authors say. But that may not equate to higher thought.

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