Atlantic Gray Seal vs Devil weed

Halichoerus grypus compared with Sargassum horneri

Key Differences

• Atlantic Gray Seal is Vulnerable while Devil weed is Not Evaluated.

Taxonomic Classification

Rank	Atlantic Gray Seal	Devil weed
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Chordata (Chordates)	Ochrophyta (Ochrophyta)
Class	Mammalia (Mammals)	Phaeophyceae (Phaeophyceae)
Order	Pinnipedia (Seals & Sea Lions)	Fucales (Fucales)
Family	Phocidae (True Seals)	Sargassaceae
Genus	Halichoerus	Sargassum
Species	Halichoerus grypus	Sargassum horneri

Conservation Status

Atlantic Gray Seal

VU — Vulnerable

Devil weed

NE — Not Evaluated

Physical Characteristics

Attribute	Atlantic Gray Seal	Devil weed
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.

Devil weed

Habitat

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

Range

Distributed across Mexico, Taiwan, and 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.