What animal keeps their king and queen prisoner?

The animal that keeps their king and queen prisoner is the ant. In certain ant species, such as the leafcutter ants, the queen is often kept in the nest and is dependent on worker ants for her survival and reproduction. The workers maintain control over the queen, ensuring she remains in the colony to produce offspring while they gather food and protect the nest. This dynamic creates a unique social structure where the queen's role is central, yet she is not free.