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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

Ethnography List

Historical Entries

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