Common Seal vs Variable Abalone

Phoca vitulina compared with Haliotis varia

Key Differences

• Common Seal is Near Threatened while Variable Abalone is Least Concern.

Taxonomic Classification

Rank	Common Seal	Variable Abalone
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Mollusca (มอลลัสกา)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Gastropoda (ชั้นแกสโทรโพดา)
Order	Pinnipedia (Seals & Sea Lions)	Lepetellida (Lepetellida)
Family	Phocidae (True Seals)	Haliotidae
Genus	Phoca (Harbor Seals)	Haliotis
Species	Phoca vitulina	Haliotis varia

Evolutionary Relationship

Common Seal and Variable Abalone share a common ancestor at the Kingdom level: Animalia. (สัตว์)

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Variable Abalone

LC — Least Concern

Physical Characteristics

Attribute	Common Seal	Variable Abalone
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.

Variable Abalone

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and deserts and xeric shrublands within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Sri Lanka and Taiwan.

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.