🐋Gray whale
الحوت الرمادي الصلب (الاسم العلمي: Eschrichtius robustus) (الإنجليزية: grey whale) هو نوع من الحيتانيات يتبع جنس الحوت الرمادي من فصيلة الحيتان الرمادية. يهاجر سنويًا للتغذية والمرتع الخصب. يبلغ طوله 14.9 متر (49 ft) ووزنه 36 طن، ويعيش ما بين 50 و70 عام. الاسم الشائع للحوت يأتي من البقع الرمادية والتَبَقُّع الأبيض على جلده القاتم. كانت الحيتان الرمادية الصلبة تسمى سمكة الشيطان بسبب سلوكها العنيف حال اصطيادها. الحوت الرمادي الصلب هو النوع الحي الوحيد المتبقي من جنس الحوت الرمادي والذي بدوره يعني أنه الجنس الحي الوحيد من فصيلة الحيتان الرمادية.
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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