🐋Gray whale
The gray whale, also known as the grey whale, is a baleen whale that migrates between feeding and breeding grounds yearly. It reaches a length of 14.9–15.2 m (49–50 ft), a weight of up to 41 to 45 tonnes and lives between 55 and 70 years, although one female was estimated to be 75–80 years of age. One of the longest-living gray whales currently is a female, first sighted in 1977, and estimated to be 53–55 years old as of 2024. The common name of the whale comes from the gray patches and white mottling on its dark skin. Gray whales were once called "devil fish" because of their fighting behavior when hunted, with mothers accompanied by their calves fighting viciously to protect their young if they are attacked. The gray whale is the sole living species in the genus Eschrichtius. It is the sole living genus in the family Eschrichtiidae; however, some recent studies classify it as a member of the family Balaenopteridae. This mammal is descended from filter-feeding whales that appeared during the Neogene.
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2018.
- Body mass
- 27,300 kg
- Body length
- 14 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 77 years
Everything we know about the Gray whale
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass27,300 kgrecord 35,000 kg · SeaLifeBaseCOMBINEOther figures ↓Hide ↑
Record: largest individual on record
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 28,500 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length14 mCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 15 mSeaLifeBasev25.04
Brain mass4,317 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan77 yearsrecord 48 years · SeaLifeBaseCOMBINEOther figures ↓Hide ↑
Record: largest individual on record
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 77 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length29 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity8.7 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation1.0 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 1.1 yearsAnAgeAnAge 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
Population density4.9 per km²COMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l27,300 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 Gray whale yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderCetacea
- ›familyEschrichtiidae
- ›genusEschrichtius
- ›speciesEschrichtius robustus
- classMammals · Mammalia
- orderEven-toed hoofed animals · Artiodactyla
- infraorderWhales & dolphins · Cetacea
- genusEschrichtius
All 15 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderEven-toed hoofed animals · Artiodactyla
- suborderWhippomorpha
- infraorderWhales & dolphins · Cetacea
- familyEschrichtiidae
- genusEschrichtius
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