Atlantic Gray Seal vs dooryard sowbug

Halichoerus grypus compared with Porcellio laevis

Key Differences

• Atlantic Gray Seal is Vulnerable while dooryard sowbug is Least Concern.

Taxonomic Classification

Rank	Atlantic Gray Seal	dooryard sowbug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Malacostraca (Crustaceans)
Order	Pinnipedia (Seals & Sea Lions)	Isopoda (Isopoda)
Family	Phocidae (True Seals)	Porcellionidae
Genus	Halichoerus	Porcellio
Species	Halichoerus grypus	Porcellio laevis

Evolutionary Relationship

Atlantic Gray Seal and dooryard sowbug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

dooryard sowbug

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Gray Seal	dooryard sowbug
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.

dooryard sowbug

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (12 countries), North America (United States), and South America (Brazil).

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