Common Seal vs Hardhack

Phoca vitulina compared with Spiraea tomentosa

Key Differences

• Common Seal is Near Threatened while Hardhack is Not Evaluated.

Taxonomic Classification

Rank	Common Seal	Hardhack
Kingdom	Animalia (животные)	Plantae (растения)
Phylum	Chordata (хордовые)	Magnoliophyta (магнолиофиты)
Class	Mammalia (млекопитающие)	Magnoliopsida (Dicots)
Order	Pinnipedia (Seals & Sea Lions)	Rosales (розоцветные)
Family	Phocidae (True Seals)	Rosaceae (Rose Family)
Genus	Phoca (Harbor Seals)	Spiraea
Species	Phoca vitulina	Spiraea tomentosa

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Hardhack

NE — Not Evaluated

Physical Characteristics

Attribute	Common Seal	Hardhack
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.

Hardhack

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (9 countries) and North America (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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States