BRISTOL, UNITED KINGDOM - MARCH 10: A real human brain being displayed as part of new exhibition at the @Bristol attraction is seen on March 8, 2011 in Bristol, England. The Real Brain exhibit - which comes with full consent from a anonymous donor and needed full consent from the Human Tissue Authority - is suspended in large tank engraved with a full scale skeleton on one side and a diagram of the central nervous system on the other and is a key feature of the All About Us exhibition opening this week. (Photo by Matt Cardy/Getty Images)
