Wasps are flying insects that belong to the order Hymenoptera, which also includes bees and ants. They have slender bodies, two pairs of wings, and a narrow waist. Unlike bees, wasps are often more aggressive and can sting multiple times. They play an important role in the ecosystem by controlling pest populations and pollinating plants. Most wasps are social and live in colonies, building nests from paper-like material made from chewed wood fibers. Common types include yellowjackets and paper wasps. While they can be a nuisance during outdoor activities, wasps are beneficial for gardens and crops by keeping harmful insects in check.