Animals are exposed to a wide variety of challenges and changes in their environment. The survive and reproduce in this dynamic environment, individuals have to alter their phenotype particularly physiology and behavior in order to cope with or avoid challenges. Yet different strategies differ in their short-term costs, as well as their long-term fitness consequences. Additionally, increasing evidence suggests that coping strategies are tightly linked with early-life environment. I am interested by the evolution of these different coping strategies and their consequences on phenotype and fitness and by how conditions during early development shape phenotype and performances later in life. My research bridges physiology, behavior and ecology to address these fundamental questions.