Steller sea lions are the largest species of sea lion. Steller sea lions can weigh up to 2,500 pounds. Bull males are by far the largest and the heaviest, up to three times the size of the average female. When they rush ashore for mating, it turns into a wild stampede, but they are just trying to grab territory to impress potential mates!

Steller sea lions are very social. During mating season, thousands of them can gather on a single beach in huge colonies. They also like to get together at other times of the year in little reunions.