image: A male Hypolimnas bolina, the Eggfly, or Blue Moon Butterfly. This image relates to an article that appeared in the July 13, 2007, issue of the journal Science, published by AAAS. The study, by Dr. Sylvain Charlat and colleagues at University College London in London, UK, was titled "Extraordinary Flux in Sex Ratio." view more
Credit: Photo copyright <i>Science</i>-AAAS