http://www.bsd.uchicago.edu/Gene.html
One of the most intriguing mysteries of biology is why humans are the only species with a brain smart enough to ponder their own existence.
Researchers at the University of California at Santa Cruz believe they have discovered a possible answer: a gene that has undergone powerful mutational changes in the last 5 million years that may partly account for the accelerated evolution of the human brain.
