Common Seal vs robust shell

Phoca vitulina compared with Littoraria undulata

Key Differences

• Common Seal is Near Threatened while robust shell is Least Concern.

Taxonomic Classification

Rank	Common Seal	robust shell
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Chordata (척삭동물)	Mollusca (연체동물)
Class	Mammalia (포유류)	Gastropoda (복족강)
Order	Pinnipedia (Seals & Sea Lions)	Littorinimorpha (총알고둥류)
Family	Phocidae (True Seals)	Littorinidae
Genus	Phoca (Harbor Seals)	Littoraria
Species	Phoca vitulina	Littoraria undulata

Evolutionary Relationship

Common Seal and robust shell share a common ancestor at the Kingdom level: Animalia. (동물)

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

robust shell

LC — Least Concern

Physical Characteristics

Attribute	Common Seal	robust shell
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.

robust shell

Habitat

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

Range

Found in Taiwan.

Common Seal

가장 널리 분포하는 기각류인 항구물범(Phoca vitulina)은 북대서양과 북태평양 양쪽의 온대 및 아북극 연안에 서식한다. 성체는 최대 130kg에 달하며 바다에서 어류·오징어·갑각류를 사냥하고 해변이나 바위 위에서 쉬며 비슷한 시간을 보낸다. 크고 표정 풍부한 눈은 저조도 수중 시야에 적응되어 있다. 범고래·상어·북극곰의 중요한 먹이원이다.