Ant colonies are complex social structures made up of many individual ants that work together to survive. Each colony typically consists of a queen, workers, and drones. The queen's primary role is to lay eggs, while worker ants gather food, care for the young, and maintain the nest. Drones are male ants whose main purpose is to mate with the queen. Ants communicate and coordinate their activities through pheromones, which are chemical signals. These signals help them find food, alert others to danger, and navigate their environment. Ant colonies can vary in size, with some containing thousands or even millions of ants, depending on the species.