The Parker lab studies the chemical ecology of reptiles, especially snakes, and uses a variety of experimental approaches to understand the mechanisms of chemical signal production. We integrate techniques from behavioral ecology, endocrinology, molecular biology, and analytical chemistry to determine how pheromones can be altered and ultimately modify receiver behavior. Garter snakes are the model organism we use to decipher these mechanisms, and we apply our findings to help solve problems centered on invasive reptiles in the U.S.