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  3. North Pacific Right Whale

One of the 7 whales on WAnimals

Mammals · Artiodactyla · Balaenidae

North Pacific Right Whale

Eubalaena japonica

Endangered

At very high risk of extinction in the wild in the near future.

Spotted something wrong?

The North Pacific right whale is probably the rarest great cetacean in the world. It is a robust baleen whale, with no dorsal fin, its head covered in callosities and baleen plates up to three metres long with which it filters copepods and krill. It was decimated by nineteenth-century commercial whaling and, when it was already protected, illegal Soviet whaling in the 1960s finished off the eastern population. Today the Bering Sea subpopulation is counted in dozens of animals.

Weight

50 t – 90 t

Size

15 m – 18 m

Life expectancy

70 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Irregular activity

Active at irregular times, by day or night depending on circumstances.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Sighting difficulty

Hard

Estimated population

A few hundred in all; the eastern subpopulation (the Bering Sea and the Gulf of Alaska) is estimated at about 30 individuals

OceanPolar
4countries5parks3same family

Fun facts

  • The callosities on its head form a different pattern in each individual, which allows them to be identified as if by fingerprint.
  • It was called the right whale because it was the right whale to hunt: it swims slowly, comes close inshore and floats when killed thanks to its enormous layer of blubber.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Cold and temperate waters of the North Pacific, the Bering Sea and the Sea of Okhotsk
Birth weight
Around 1,000 kg
Size at birth
About 4-4.5 m long at birth
Sexual maturity
9 years
Gestation / incubation
12 months
Litter / clutch size
1

Sources consulted: https://es.wikipedia.org/wiki/Eubalaena_japonica

Where to find it

Best time: May to August in the Bering Sea and the Gulf of Alaska; with fewer than a hundred individuals in the eastern subpopulation, a sighting is exceptional.

Loading map…

The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with North Pacific Right Whale — same habitat, park, country, tags or family.

Same taxonomic family
Shares a park
Shares a park
Shares a park
Shares a park
Same taxonomic family

How to help

The north pacific right whale is classified as endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 3 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about north pacific right whale.

Comments

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See full glossary
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CountriesUnited States
ParksGlacier BayUnited States
TagsCarnivore
Carnivore
Variable activity
Solitary
Endangered
Ocean
Polar
Mammal
United States
Japan
Canada
Russia