The small wingless female ants, called workers, cannot lay eggs. Their job is to look after the nest. They collect food and care for the young. Sometimes special workers called soldiers guard the colony against attack. Some ants will raid the nest of others and carry off their weaker victims as slaves.
Many ants eat other insects.
Army ants march in vast columns, eating any animal in their path that cannot escape. Other ants, milk aphids for their honeydew. Harvester ants gather and store plant food. Some ants even grow fungus in special gardens inside their nests. Ants will mark a trail to guide other ants in their colony to food.