Common Seal vs North Atlantic right whale

Phoca vitulina compared with Eubalaena glacialis

Key Differences

Common Seal is Near Threatened while North Atlantic right whale is Extinct.

Taxonomic Classification

Rank	Common Seal	North Atlantic right whale
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Pinnipedia (Seals & Sea Lions)	Cetacea (Whales & Dolphins)
Family	Phocidae (True Seals)	Balaenidae
Genus	Phoca (Harbor Seals)	Eubalaena
Species	Phoca vitulina	Eubalaena glacialis

Evolutionary Relationship

Common Seal and North Atlantic right whale share a common ancestor at the Class level: Mammalia. (Mammals)

View Class: Mammalia

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

North Atlantic right whale

EX — Extinct

Physical Characteristics

Attribute	Common Seal	North Atlantic right whale
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.

North Atlantic right whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

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.