2023 08 04 Blue whale Isfjord Svalbard 04🐋

Photo: Carina Gsottbauer · CC BY-SA 4.0

SpeciesCetaceaBalaenopteridae
Marine mammals

🐋Blue whale

Balaenoptera musculus (Linnaeus, 1758)

The blue whale is a species of baleen whale and the largest marine mammal in the rorqual family Balaenopteridae. Reaching a maximum confirmed length of 29.9–30.5 m (98–100 ft) and weighing up to 190–200 t, it is the largest animal known to have ever existed. The blue whale's long and slender body can be of various shades of greyish-blue on its upper surface and somewhat lighter underneath. Four subspecies are recognized: B. m. musculus in the North Atlantic and North Pacific, B. m. intermedia in the Southern Ocean, B. m. brevicauda in the Indian Ocean and South Pacific Ocean, and B. m. indica in the Northern Indian Ocean. There is a population in the waters off Chile that may constitute a fifth subspecies.

Text: Wikipedia, CC BY-SA 4.0.

Videos
763
Photos
7
Measurements
11
vs you
≈ 2,400× your weight
Also called
Balaenoptera musculus, Pygmy Blue Whale, Sibbold’s Rorqual, Sulphur-bottom Whale
Conservation status
ENEndangered

IUCN Red List assessment, 2018.

Population trendIncreasing
Key measurements
Body mass
149,000 kg
Body length
30 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
110 years
All measurements ↓
Facts and figures

Everything we know about the Blue whale

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

Body mass
149,000 kgrecord 160,000 kg · SeaLifeBase
COMBINE
Other figures ↓

Record: largest individual on record

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

Figures vary

  • 136,000 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length
30 m
COMBINE
Other figures ↓

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

By sex

  • Female27 mWikidataQ42196

Figures vary

  • 33 mSeaLifeBasev25.04
Brain mass
6,729 g
COMBINE
Details ↓

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

Maximum lifespan
110 years
COMBINE
Other figures ↓

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

Figures vary

  • 110 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length
31 years
COMBINE
Details ↓

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

Age at maturity
5.4 years
COMBINE
Details ↓

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

Gestation
327 days
COMBINE
Other figures ↓

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

Figures vary

  • 350 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
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: acceptable
Trophic level
Carnivore
COMBINE
Details ↓

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

Activity cycle
Diurnal
COMBINE
Details ↓

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

Volume l
149,000 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 Blue whale yet: shoulder height, top speed, bite force.

More

More about the Blue whale

Closest relative on this site
🐋 Sei whale — last shared an ancestor ≈ 2.0 million years ago.
What it eats
insects and other invertebrates100%
In other languages
blåhval (nb), Blauwal (de), 藍鯨 (zh), Balaenoptera musculus (es), baleine bleue (fr), Balaenoptera musculus (it) … and 28 more languages

Animals caught on camera

Real footage of the animals on this site — hunting, fighting, and getting on with it.

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