Common Seal vs Dusky Dolphin

Phoca vitulina compared with Lagenorhynchus obscurus

Key Differences

• Common Seal is Near Threatened while Dusky Dolphin is Least Concern.

Taxonomic Classification

Rank	Common Seal	Dusky Dolphin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Mammalia (mamíferos)	Mammalia (mamíferos)
Order	Pinnipedia (Seals & Sea Lions)	Cetacea (Whales & Dolphins)
Family	Phocidae (True Seals)	Delphinidae (Oceanic Dolphins)
Genus	Phoca (Harbor Seals)	Lagenorhynchus
Species	Phoca vitulina	Lagenorhynchus obscurus

Evolutionary Relationship

Common Seal and Dusky Dolphin share a common ancestor at the Class level: Mammalia. (mamíferos)

Conservation Status

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Dusky Dolphin

LC — Least Concern

Physical Characteristics

Attribute	Common Seal	Dusky Dolphin
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.

Dusky Dolphin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Common Seal

O pinípede de distribuição mais ampla, a foca-comum (Phoca vitulina) habita as costas temperadas e subárticas do Atlântico Norte e do Pacífico Norte. Os adultos atingem até 130 kg e passam tempo aproximadamente igual no mar caçando peixes, lulas e crustáceos e descansando em praias ou rochas. Seus grandes e expressivos olhos são adaptados para a visão subaquática em pouca luz. A foca-comum é uma fonte de alimento fundamental para orcas, tubarões e ursos-polares.