Title: Functional genomics of life history variation in a  butterfly metapopulation

• This article is part of the 'From the Cover' series, which contains papers of exceptional interest to a wide audience and that address significant questions in ecology, evolution, behaviour or conservation.
• The article has also been covered in the News & Views section of the May 2011 issue, in an article by Peter Klepsatel and Thomas Flatt, titled "The genomic and physiological basis of life history variation in a butterfly metapopulation"
• Cover image is shown on the right.