Lobodon carcinophagus on sea ice (cropped)🦭

Photo: François Guerraz · CC BY-SA 3.0

SpeciesCarnivoraPhocidae
Carnivores

🦭Crabeater seal

Lobodon carcinophaga (Hombron & Jacquinot, 1842)

The crabeater seal, also known as the krill-eater seal, is a true seal with a circumpolar distribution around the coast of Antarctica. They are the only member of the genus Lobodon. They are medium- to large-sized, relatively slender and pale-colored, found primarily on the free-floating pack ice that extends seasonally out from the Antarctic coast, which they use as a platform for resting, mating, social aggregation and accessing their prey. They are by far the most abundant seal species in the world. While population estimates are uncertain, there are at least 7 million and possibly as many as 75 million individuals. This success of this species is due to its specialized predation on the abundant Antarctic krill of the Southern Ocean, for which it has uniquely adapted, sieve-like tooth structure. Indeed, its scientific name, translated as "lobe-toothed (lobodon) crab eater (carcinophaga)", refers specifically to the finely lobed teeth adapted to filtering their small crustacean prey.

Text: Wikipedia, CC BY-SA 4.0.

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Photos
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Measurements
12
vs you
≈ 3.8× your weight
Conservation status
LCLeast concern

IUCN Red List assessment, 2025.

Population trendUnknown
Key measurements
Body mass
238 kg
Body length
2.42 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
39 years
All measurements ↓
Facts and figures

Everything we know about the Crabeater seal

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body mass
238 kgrecord 300 kg · SeaLifeBase
COMBINE
Other figures ↓

Record: largest individual on record

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 250 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Body length
2.42 m
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 2.6 mSeaLifeBasev25.04
Brain mass
607 g
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Maximum lifespan
39 years
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Generation length
15 years
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Age at maturity
4.2 years
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Gestation
270 days
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 259 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Litter size
1
COMBINE
Other figures ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Figures vary

  • 1AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: low
Trophic level
Carnivore
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Activity cycle
Crepuscular / mixed
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Population density
1.01 per km²
COMBINE
Details ↓

Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0

Volume l
238 Laverage
Details ↓

Body mass at ~1.0 kg/L, the density of vertebrate tissue.

average = a mean across sexes or species in a group.

Not recorded for Crabeater seal yet: shoulder height, top speed, bite force.

Where it sits

Family tree

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›classMammalia
  4. ›orderCarnivora
  5. ›familyPhocidae
  6. ›genusLobodon
  7. ›speciesLobodon carcinophaga
Full lineage
  1. classMammals · Mammalia
  2. orderCarnivorans · Carnivora
  3. familyPhocidae
  4. genusLobodon
All 14 branches ↓
  1. kingdomMetazoa
  2. phylumChordata
  3. subphylumCraniata
  4. subphylumVertebrata
  5. superclassGnathostomata
  6. superclassSarcopterygii
  7. superclassTetrapoda
  8. classMammals · Mammalia
  9. subclassTheria
  10. superorderLaurasiatheria
  11. orderCarnivorans · Carnivora
  12. suborderCaniformia
  13. familyPhocidae
  14. genusLobodon
More

More about the Crabeater seal

What it eats
insects and other invertebrates100%
In other languages
Крабоед (ru), Krabbenesser (de), Krabojad foczy (pl), 게잡이물범 (ko), Phoque crabier (fr), rákevő fóka (hu) … and 21 more languages
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