Facts about Steller Sea Lion
- 07
Skeletal remains from archaeological sites show Steller sea lions possessed specialized ear structures allowing them to hear frequencies up to 40 kilohertz, far exceeding human auditory range.
- 06
Migratory routes of Steller sea lions span up to 500 kilometers annually as they travel between breeding colonies in Russia and feeding grounds in the North Pacific Ocean.
- 05
In 1989, the Exxon Valdez oil spill killed an estimated 5,000 Steller sea lions in Alaska, making it one of the most significant marine mammal disasters in modern history.
- 04
Pups born to Steller sea lions nurse for approximately 3 to 4 weeks before being weaned, one of the shortest lactation periods among pinnipeds.
- 03
Between 1960 and 1980, Steller sea lion populations collapsed from approximately 300,000 individuals to just 30,000 due to commercial hunting and fishing net entanglement.
- 02
Vocal communication among Steller sea lions includes barks, growls, and roars that can reach 144 decibels underwater, allowing them to coordinate within large breeding colonies.
- 01
Weighing up to 2,400 pounds, adult male Steller sea lions are the largest sea lions in the world and can dive to depths exceeding 600 meters.