Southern Elephant Seal vs. Steller Sea Lion
What's the Difference?
The Southern Elephant Seal and Steller Sea Lion are both large marine mammals found in the cold waters of the southern hemisphere. However, they differ in size and appearance. The Southern Elephant Seal is the largest seal species, with males reaching lengths of up to 20 feet and weighing over 8,000 pounds, while the Steller Sea Lion is slightly smaller, with males reaching lengths of up to 11 feet and weighing around 2,500 pounds. Additionally, the Southern Elephant Seal has a distinctive trunk-like proboscis on its nose, while the Steller Sea Lion has a more traditional seal-like appearance. Both species are known for their impressive size and strength, as well as their ability to dive deep in search of food.
Comparison
Attribute | Southern Elephant Seal | Steller Sea Lion |
---|---|---|
Scientific Name | Mirounga leonina | Eumetopias jubatus |
Size | Up to 20 feet long | Up to 11 feet long |
Weight | Up to 8000 pounds | Up to 2400 pounds |
Range | Antarctic region | North Pacific Ocean |
Diet | Primarily fish and squid | Primarily fish |
Further Detail
Physical Characteristics
Southern Elephant Seals are the largest of all seals, with males reaching lengths of up to 20 feet and weighing as much as 8,800 pounds. They have a distinctive trunk-like nose, which gives them their name. In contrast, Steller Sea Lions are the largest of all sea lions, with males reaching lengths of up to 11 feet and weighing around 2,500 pounds. They have a sleek, streamlined body with a pointed snout.
Habitat
Southern Elephant Seals are found in the Southern Hemisphere, primarily in the waters around Antarctica. They spend most of their time at sea, coming ashore only to breed and molt. Steller Sea Lions, on the other hand, are found in the North Pacific Ocean, from California to Alaska and across to Russia. They prefer rocky coastlines and haul out on beaches and rocky islands.
Diet
Southern Elephant Seals primarily feed on squid and fish, diving to great depths to catch their prey. They can stay underwater for up to two hours at a time. Steller Sea Lions also feed on fish, as well as squid and octopus. They are known for their impressive hunting skills, often working together to herd schools of fish.
Behavior
Southern Elephant Seals are known for their aggressive behavior during the breeding season, with males fighting each other for dominance. They are also known for their loud vocalizations, which can be heard from a great distance. Steller Sea Lions are more social animals, often forming large colonies on rocky shores. They are known for their playful behavior, with individuals often seen interacting with each other.
Conservation Status
Southern Elephant Seals were once hunted for their blubber and oil, leading to a significant decline in their population. However, conservation efforts have helped to increase their numbers, and they are now considered a species of least concern. Steller Sea Lions, on the other hand, have faced a decline in their population due to a variety of factors, including overfishing and habitat loss. They are currently listed as near threatened.
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