Common Seal vs North American porcupine

Phoca vitulina compared with Erethizon dorsatus

Key Differences

• Common Seal is Near Threatened while North American porcupine is Least Concern.

Taxonomic Classification

Rank	Common Seal	North American porcupine
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (mamalia)	Mammalia (mamalia)
Order	Pinnipedia (Seals & Sea Lions)	Rodentia (hewan pengerat)
Family	Phocidae (True Seals)	Erethizontidae
Genus	Phoca (Harbor Seals)	Erethizon
Species	Phoca vitulina	Erethizon dorsatus

Evolutionary Relationship

Common Seal and North American porcupine share a common ancestor at the Class level: Mammalia. (mamalia)

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

North American porcupine

LC — Least Concern

Physical Characteristics

Attribute	Common Seal	North American porcupine
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 American porcupine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

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.

Shared Countries

Both species can be found in 1 countries:

🇺🇸 United States