Atlantic Gray Seal vs Dark Crottle

Halichoerus grypus compared with Hypogymnia physodes

Key Differences

• Atlantic Gray Seal is Vulnerable while Dark Crottle is Least Concern.

Taxonomic Classification

Rank	Atlantic Gray Seal	Dark Crottle
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Pinnipedia (Seals & Sea Lions)	Lecanorales (Lecanorales)
Family	Phocidae (True Seals)	Parmeliaceae
Genus	Halichoerus	Hypogymnia
Species	Halichoerus grypus	Hypogymnia physodes

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

Dark Crottle

LC — Least Concern

Physical Characteristics

Attribute	Atlantic Gray Seal	Dark Crottle
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.

Dark Crottle

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States).

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 4 countries:

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