image: Female Nasonia wasp stings a fleshfly pupa. Eggs are laid into the host through the ovipositor (the thin yellow tube entering the pupa). This image relates to a paper that appeared in the Feb. 24, 2012, issue of Science, published by AAAS. The paper, by David Loehlin and John Werren at the University of Rochester in Rochester, N.Y., and colleagues was titled, "Evolution of Shape by Multiple Regulatory Changes to a Growth Gene." view more
Credit: Image © Leo W. Beukeboom