Atlantic Gray Seal vs Green-Underside Blue

Halichoerus grypus compared with Glaucopsyche alexis

Key Differences

• Atlantic Gray Seal is Vulnerable while Green-Underside Blue is Near Threatened.

Taxonomic Classification

Rank	Atlantic Gray Seal	Green-Underside Blue
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Pinnipedia (Seals & Sea Lions)	Lepidoptera (Butterflies & Moths)
Family	Phocidae (True Seals)	Lycaenidae
Genus	Halichoerus	Glaucopsyche
Species	Halichoerus grypus	Glaucopsyche alexis

Evolutionary Relationship

Atlantic Gray Seal and Green-Underside Blue share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

Green-Underside Blue

NT — Near Threatened

Physical Characteristics

Attribute	Atlantic Gray Seal	Green-Underside Blue
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atlantic Gray Seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Green-Underside Blue

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (37 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Atlantic Gray Seal

The Atlantic Gray Seal (Halichoerus grypus) is a species in the genus Halichoerus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden