Common Seal vs Mediterranean monk seal

Phoca vitulina compared with Monachus monachus

Key Differences

Common Seal is Near Threatened while Mediterranean monk seal is Endangered.

Taxonomic Classification

Rank	Common Seal	Mediterranean monk seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Pinnipedia (Seals & Sea Lions)	Pinnipedia (Seals & Sea Lions)
Family same	Phocidae (True Seals)	Phocidae (True Seals)
Genus	Phoca (Harbor Seals)	Monachus
Species	Phoca vitulina	Monachus monachus

Evolutionary Relationship

Common Seal and Mediterranean monk seal share a common ancestor at the Family level: Phocidae. (True Seals)

View Family: Phocidae

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Mediterranean monk seal

EN — Endangered

Physical Characteristics

Attribute	Common Seal	Mediterranean monk seal
Diet	Carnivore	—
Average Lifespan	30 years	—
Average Length	1.7 m	—
Average Weight	80.0 kg	—

Habitat & Geographic Range

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Mediterranean monk seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Portugal and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.