LONDON, ENGLAND - JUNE 02:  An original copy of The Origin of Species which forms part of  'The Royal Society:350 Years of Science' exhibition is displayed in front of a portrait of Charles Darwin on June 2, 2010 in London, England. The exhibition at The Royal Society's headquarters forms part of The Society's 350th anniversary year celebrations and displays material from the Society's foundation in 1660 to the present day.  (Photo by Peter Macdiarmid/Getty Images)