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  3. Grey Seal

One of the 13 seals on WAnimals

Grey Seal (Halichoerus grypus)

Mammals · Carnivora · Phocidae

Grey Seal

Halichoerus grypus

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

It can dive to 460 metres and stay under for a full hour, and its distinctive horse-like curved muzzle has earned it the popular name "horsehead seal".

Weight

268 kg on average

Life expectancy

20 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Irregular activity

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

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Ocean
20countries14parks20dive sites14same family1natural phenomena1featured routes

AI-generated images: illustrations, not photographs.

Fun facts

  • One animal in captivity reached a record 42.9 years.
  • It feeds on a variety of fish and occasionally on marine invertebrates.
  • It lives on the temperate and subarctic coasts of the North Atlantic, the Baltic included.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Temperate and subarctic coasts of the North Atlantic, the Baltic included
Birth weight
Born in a distinctive woolly white coat
Size at birth
Born in a woolly white coat
Sexual maturity
4 years
Gestation / incubation
240 days of active gestation, plus ~100 days of delayed implantation
Litter / clutch size
1 young per birth
Life expectancy in captivity
Documented record of up to 42.9 years

Sources consulted: A-Z Animals · Animal Diversity Web · AnAge (genomics.senescence.info)

Where to find it

Loading map…

Where to see it

Parks and dive sites where this species has been documented — showing 20 of 34.

Related species

Other species in the catalogue with the most in common with Grey Seal — same habitat, park, country, tags or family.

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

Keep exploring

Based on what we already know about grey seal.

Share an experience, a fun fact or a tip for seeing the grey seal.
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This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks and dive sites where its presence is documented.

See its range on the interactive map→
VatnajokullIceland
LahemaaEstonia
FundyCanada
Wadden Sea National ParkDenmark
Wadden SeaGermany
Pembrokeshire CoastUnited Kingdom
NorthumberlandUnited Kingdom
Curonian SpitLithuania
JasmundGermany
KosterhavetSweden
Scapa FlowUnited Kingdom
Farne IslandsUnited Kingdom
Lofoten (orcas)Norway
St AbbsUnited Kingdom
Malin HeadIreland
Block Island (Mohawk wreck)United States
Andrea DoriaUnited States
Bay of FundyCanada
Saguenay Fjord (belugas)Canada
Bell Island WrecksCanada
See all 14 parks
See all 20 dive sites
Least Concern

Harp Seal

Pagophilus groenlandicus

Harbor SealLeast Concern

Harbor Seal

Phoca vitulina

Vulnerable

Hooded Seal

Cystophora cristata

Bottlenose DolphinLeast Concern

Bottlenose Dolphin

Tursiops truncatus

Short-beaked Common DolphinLeast Concern

Short-beaked Common Dolphin

Delphinus delphis

Long-finned Pilot WhaleLeast Concern

Long-finned Pilot Whale

Globicephala melas

CountriesUnited Kingdom
ParksVatnajokullIceland
TagsCarnivore
Carnivore
Variable activity
Colonial
Ocean
Mammal

Europe17

North America3

United Kingdom
Canada
United States
Germany
Finland
Ireland
Belgium
Denmark
Estonia
Finland
France
Germany
Iceland
Ireland
Latvia
Lithuania
Netherlands
Norway
Poland
Portugal
Spain
Sweden
United Kingdom
Canada
Greenland
United States