A plastinated human blood vessel system is seen during the "Body Worlds" exhibition by Gunther von Hagen at the Universum Museum in Mexico City August 14, 2012. Von Hagen is a German anatomist who invented plastination, the method for preserving biological tissue specimens. The exhibition shows whole bodies plastinated in lifelike poses and dissected to show various structures and system of human anatomy. REUTERS/Henry Romero (MEXICO - Tags: SOCIETY SCIENCE TECHNOLOGY)