Eubalaena glacialis with calf🐋

Photo: Public domain

SpeciesCetaceaBalaenidae
Marine mammals

🐋North Atlantic right whale

Eubalaena glacialis (Müller, 1776)

The North Atlantic right whale is a baleen whale, one of three right whale species belonging to the genus Eubalaena, all of which were formerly classified as a single species. Because of their docile nature, their slow surface-skimming feeding behaviors, their tendencies to stay close to the coast, and their high blubber content, right whales were once a preferred target for whalers. At present, they are among the most endangered whales in the world, and they are protected under the U.S. Endangered Species Act and Marine Mammal Protection Act and Canada's Species at Risk Act. There are an estimated 356 individuals in existence in the western North Atlantic Ocean—they migrate between feeding grounds in the Labrador Sea and their winter calving areas off Georgia and Florida, an ocean area with heavy shipping traffic. In the eastern North Atlantic, on the other hand—with a total population reaching into the low teens at most—scientists believe that they may already be functionally extinct. Vessel strikes and entanglement in fixed fishing gear, which together account for nearly half of all North Atlantic right whale mortality since 1970, are their two greatest threats to recovery.

Text: Wikipedia, CC BY-SA 4.0.

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Photos
3
Measurements
10
vs you
≈ 370× your weight
Also called
Northern Right Whale, Black Right Whale
Conservation status
CRCritically endangered

IUCN Red List assessment, 2020.

Population trendDecreasing
Key measurements
Body mass
23,000 kg
Body length
18 m
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
67 years
All measurements ↓
Facts and figures

Everything we know about the North Atlantic right whale

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

Body mass
23,000 kgrecord 100,000 kg · SeaLifeBase
COMBINE
Other figures ↓

Record: largest individual on record

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

Figures vary

  • 23,000 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length
18 m
COMBINE
Other figures ↓

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

Figures vary

  • 18 mSeaLifeBasev25.04
Maximum lifespan
67 years
COMBINE
Other figures ↓

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

Figures vary

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

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

Age at maturity
10 years
COMBINE
Details ↓

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

Gestation
348 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
Crepuscular / mixed
COMBINE
Details ↓

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

Volume l
23,000 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 North Atlantic right whale yet: shoulder height, top speed, bite force.

More

More about the North Atlantic right whale

What it eats
insects and other invertebrates100%
In other languages
Nordkaper (de), Eubalaena glacialis (es), Baleine franche de l'Atlantique Nord (fr), nordkaper (nb), Waleń biskajski (pl), אובלנה צפון-אטלנטית (he) … and 22 more languages
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