Swarm robotics is the coordinated control of large numbers of simple, autonomous robots that cooperate to achieve a goal. Instead of one complex robot controlled by a central computer, you have 100 simple robots following local rules that collectively solve problems. Common examples: swarms of drones searching disaster areas, robot colonies building structures, or underwater robots monitoring reefs. Swarms are robust (if one robot fails, others continue), scalable (add more robots), and adaptable (respond to changing environments).