What is a group of sea lions called?

Sea lions live in colonies and are social animals that form groups called rookeries. These rookeries can range in size from a few individuals to thousands of sea lions. The social hierarchy within these groups is organized by sex, age, and size. Male sea lions will establish territories and defend them aggressively from other males, while females will form maternal groups and care for their young. The group dynamics of sea lions are complex and can vary depending on the species and environment in which they live.