Circular Ear Shell vs Common Seal

Haliotis cyclobates compared with Phoca vitulina

Key Differences

• Circular Ear Shell is Least Concern while Common Seal is Near Threatened.

Taxonomic Classification

Rank	Circular Ear Shell	Common Seal
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Mollusca (رخويات)	Chordata (حبليات)
Class	Gastropoda (بطنيات القدم)	Mammalia (ثدييات)
Order	Lepetellida (Lepetellida)	Pinnipedia (Seals & Sea Lions)
Family	Haliotidae	Phocidae (True Seals)
Genus	Haliotis	Phoca (Harbor Seals)
Species	Haliotis cyclobates	Phoca vitulina

Evolutionary Relationship

Circular Ear Shell and Common Seal share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Circular Ear Shell

LC — Least Concern

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	Circular Ear Shell	Common Seal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	1.7 m
Average Weight	—	80.0 kg

Habitat & Geographic Range

Circular Ear Shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.

Circular Ear Shell

The Circular Ear Shell (Haliotis cyclobates) is a species in the genus Haliotis. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

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.