Okay, frankly this shakes my belief in all that's holy...
Do you really have to have a brain? The reason for my apparently
absurd question is the remarkable research conducted at the
University of Sheffield by neurology professor John Lorber.
When Sheffield's campus doctor was treating one of the
mathematics students for a minor ailment, he noticed that the
student's head was a little larger than normal. The doctor
referred the student to professor Lorber for further examination.
The student in question was academically bright, had a reported
IQ of 126 and was expected to graduate. When he was examined by
CAT-scan, however, Lorber discovered that he had virtually no
brain at all.
Instead of two hemispheres filling the cranial cavity, some 4.5
centimetres deep, the student had less than 1 millimetre of
cerebral tissue covering the top of his spinal column.
Find out even more at:

http://www.alternativescience.com/no_brainer.htm