Our open access paper describing the genomic consequences of natural selection in experimental stick insect (Timema cristinae) populations was published in the March issue of Ecology Letters, and Aaron Comeault’s photo of the focal organism made the cover. I think this paper nicely demonstrates that genetic drift and selection can affect genome variation on ecological time scales, and also highlights the need to consider direct and indirect (linked or correlated) selection as determinants of allele frequency change at individual loci. You can read more about this study on Andrew Hendry’s Evo-Eco blog.