A new study on three species of blow flies that commonly factor into forensic entomology investigations examines what drives the timing of their arrival and how they interact. The studied species, shown left to right as adults here, are Phormia regina, Lucilia sericata, and Chrysomya rufifacies. (Photos by Whitney Cranshaw, Colorado State University [left]; Joseph Berger [middle]; and Pest and Diseases Image Library [right]; all via Bugwood.org)