Worker ants are female ants that do not reproduce. Their primary role is to gather food, care for the queen's offspring, and maintain the nest. They are typically smaller than the queen and have strong mandibles for carrying objects and digging. These ants live in colonies, which can range from a few dozen to millions of individuals. Worker ants communicate with each other using pheromones, which are chemical signals that help them coordinate tasks and alert others to danger. Their teamwork is essential for the survival and efficiency of the entire ant colony.