Entomology is the scientific study of insects, a branch of zoology. It involves understanding the biology, behavior, ecology, and taxonomy of insects, which are the most diverse group of animals on Earth. Entomologists often study the roles insects play in ecosystems, including their contributions to pollination, decomposition, and as food sources for other animals. Insects are vital to agriculture and human health, making entomology important for pest control and disease management. This field also explores the relationships between insects and humans, such as the impact of insect pests on crops and the benefits of beneficial insects like bees and ladybugs.