🦭Steller's sea lion
The Steller sea lion, also known as Steller's sea lion or the northern sea lion, is a large, near-threatened species of sea lion, predominantly found in the coastal marine habitats of the northeast Pacific Ocean and the Pacific Northwest regions of North America, from north-central California to Oregon, Washington and British Columbia to Alaska. Its range continues across the Northern Pacific and the Aleutian Islands, all the way to Kamchatka, Magadan Oblast, and the Sea of Okhotsk, south to Honshu's northern coastline. It is the sole member of the genus Eumetopias, and the largest of the so-called eared seals (Otariidae). Among pinnipeds, only the walrus and the two species of elephant seal are bigger. The species is named for the naturalist and explorer Georg Wilhelm Steller, who first described them in 1741. Steller sea lions have attracted considerable attention in recent decades, both from scientists and the general public, due to significant declines in their numbers over an extensive portion of their northern range, notably in Alaska.
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2016.
- Body mass
- 382 kg
- Body length
- 3.1 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 33 years
Everything we know about the Steller's sea lion
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass382 kgrecord 1,100 kg · SeaLifeBaseCOMBINEOther figures ↓Hide ↑
Record: largest individual on record
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
By sex
- Female300 kgSeaLifeBasev25.04SeaLifeBase populates Weight independently of Length; the two are not guaranteed to describe the same individual. Verify before publishing.
Figures vary
- 415 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length3.1 mtypical adult, total lengthSeaLifeBaseOther figures ↓Hide ↑
Source: SeaLifeBase · v25.04 · CC BY-NC 4.0
By sex
- Female2.5 mSeaLifeBasev25.04
Figures vary
- 2.97 mCOMBINEv1 (Soria et al. 2021)
- 3.3 mSeaLifeBasev25.04
Brain mass685 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan33 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 33 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length9.99 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity5.4 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation308 daysCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 274 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Litter size1COMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 1AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Trophic levelOmnivoreCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Activity cycleCrepuscular / mixedCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l383 LaverageDetails ↓Hide ↑
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 Steller's sea lion yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderCarnivora
- ›familyOtariidae
- ›genusEumetopias
- ›speciesEumetopias jubatus
- classMammals · Mammalia
- orderCarnivorans · Carnivora
- familyOtariidae
- genusEumetopias
All 14 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderCarnivorans · Carnivora
- suborderCaniformia
- familyOtariidae
- genusEumetopias
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