Entomology is the scientific study of insects. It is a branch of zoology that focuses on the structure, physiology, development, behavior, and classification of insects. Entomologists are scientists who specialize in the study of insects and their interactions with humans, the environment, and other organisms. They use a variety of methods to study insects, including field observations, laboratory experiments, and data analysis. Entomologists may also work in pest control, conservation, or public health.