Phenotypic plasticity, the ability of organisms to produce different phenotypes in response to environmental variation, is a vital mechanism for adapting to changing environments. Among environmental factors, temperature plays a significant role in driving plasticity, influencing traits across life stages, particularly during development. Developmental temperature can have lasting effects on physiology, life-history traits, and overall fitness, yet the molecular mechanisms through which it shapes adult outcomes remain poorly understood. Our project focuses on uncovering how developmental temperature influences adult physiology and fitness. By investigating the interplay between environmental factors and genetic regulation, we aim to elucidate the mechanisms underlying temperature-induced phenotypic plasticity. This work seeks to enhance our understanding of how ectotherms adapt to environmental variability, providing critical insights into their resilience in the face of ongoing climate change.