Research in our lab addresses two broad questions. First, we are interested in the dynamics and consequences of sexual coevolution. Although all sexually-reproducing populations experience sexual selection and conflict, the implications of these powerful within-population processes remain poorly understood. Second, we are interested in the effects of environment on phenotype and fitness, and the implications of such effects for evolution. To address these questions, we investigate morphological, life history and behavioural traits in insect systems. We also develop new theory