Insects as a model system to understand the evolutionary implications of innovation / / Emilie Snell-Rood, Eli Swanson and Sarah Jaumann : Defining innovation from an evolutionary perspective and incorporating "mistakes" ; Resource search in insects: the role of trial-and-error processes ; Host shifts and diversification: behavioral innovation leads the way ; The spread of innovations through social interactions ; Conclusions and implications ; Commentary : Insect creativity as applied to human organizational behavior: a form of social biomimicry? /Samuel T. Hunter --