06/10/2026
Gyrification: How the brain gets groovy
June 9th, 2026
Written by Meagan Olson
If you were to run your finger along the surface of your brain, it would feel warm, soft, and squishy. You would also notice that your brain has rounded ridges and steep grooves, giving the brain its characteristic wrinkly appearance. But why did the brain evolve this wrinkled appearance in the first place, and how do these folds form during development? In this article, we’ll explore how evolution and biology transformed the cerebral cortex into the folded structure that powers human thought and helps organize the brain into specialized functional regions.
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Why is the human brain wrinkled, rather than smooth like the brain of a mouse? Explore how evolution solved a space problem by folding the cerebral cortex, creating the ridges and grooves that help…