Cat shark vs Common Seal

Scyliorhinus torrei compared with Phoca vitulina

Key Differences

• Cat shark is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Cat shark	Common Seal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Mammalia (Mammals)
Order	Carcharhiniformes (Ground Sharks)	Pinnipedia (Seals & Sea Lions)
Family	Scyliorhinidae	Phocidae (True Seals)
Genus	Scyliorhinus	Phoca (Harbor Seals)
Species	Scyliorhinus torrei	Phoca vitulina

Evolutionary Relationship

Cat shark and Common Seal share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cat shark

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Cat shark	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Cat shark

Habitat

Typically found in marine environments from coastal waters to deep ocean.

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.

Cat shark

The Cat shark (Scyliorhinus torrei) is a species in the genus Scyliorhinus. It is currently classified as Least Concern on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

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.