

Southern Elephant Seal
Mirounga leonina
🐋
Chordata
Mammalia
Carnivora
Pinnipedia
Phocidae
Mirounga
Mirounga leonina
The Southern Elephant Seal is the largest member of the carnivoran order and one of the most extreme divers among marine mammals. Though rarely hunted by pre-modern humans, it was heavily targeted by 18th–19th century sealers for its oil-rich blubber.
Description
Southern Elephant Seal (Mirounga leonina) — This massive pinniped is the heaviest of all seals, with adult males weighing up to 4,000 kg and measuring 4.2–6 meters in length. Their name comes from the adult male’s distinctive proboscis, which amplifies vocalizations during the breeding season. Southern Elephant Seals can dive to over 2,000 meters and remain submerged for up to 2 hours, feeding primarily on squid and deep-sea fish.
They breed on remote sub-Antarctic islands and coastlines and undergo an annual haul-out for molting. While now protected, they were once severely reduced by sealing.
Quick Facts
Max Mass
Shoulder Height
Standing Height
Length
Diet
Trophic Level
4000
0.5
0.75
5.8
kg
m
m
m
Mixed Feeder
Omnivores – Balanced
Hunt History
There is little direct evidence of pre-contact indigenous hunting of Southern Elephant Seals, due to their remote sub-Antarctic range. However, early humans on the southernmost parts of South America may have opportunistically scavenged or hunted smaller seals.
Industrial exploitation began in the late 1700s, especially around South Georgia, Macquarie Island, and Kerguelen. Sealers harvested the animals for oil from their thick blubber, a resource crucial for lighting and lubrication before petroleum.
Earliest Archaeological or Historical Evidence of Human Use:
Fuegian sites, Tierra del Fuego (southern South America): Late Holocene shell middens contain elephant seal bones, suggesting opportunistic hunting or scavenging.
Macquarie Island (early 1800s): First recorded mass exploitation by sealers; tens of thousands of elephant seals killed annually.
South Georgia (late 18th century): Base for British and American sealing operations.
Time & Range
Extinction Status
Extant
Extinction Date
Temporal Range
Region
0
BP
Holocene
Antarctic Ocean
Wiki Link
Fat Analysis
Fatness Profile:
Medium
Fat %
5
Est. Renderable Fat
200
kg
Targeted Organs
Visceral & subcutaneous
Adipose Depots
Visceral/subcutaneous (general)
Preferred Cuts
Visceral depot
Hunt Difficulty (x/5)
4





