Why do brains have folds in them?
The folds maximise the surface area of the brain cortex. Less intelligent animals, such as rats, have smooth brains. Much of the work that our brains do is performed by the top few layers of cells.
Why Don't Penguins' Feet Freeze?, edited by Mick O'Hare.
The folds in our brains represent intelligence
Why do brains have folds in them?
The folds maximise the surface area of the brain cortex. Less intelligent animals, such as rats, have smooth brains. Much of the work that our brains do is performed by the top few layers of cells.
Why Don't Penguins' Feet Freeze?, edited by Mick O'Hare.