Contents

06 February 2009
Vol 323, Issue 5915

About The Cover

Cover image expansion

COVER Charles Darwin's abiding interest in the classification of barnacles, illustrated here, was one of the inspirations for his investigations into the origins and diversification of species. Science marks Darwin's 200th birthday with a special section on speciation beginning on page 727) Image: Illustrations by George Sowerby, reproduced with permission from The Complete Work of Charles Darwin Online, John van Wyhe, Ed. (http://darwin-online.org.uk); background: iStockphoto.com