Hooded seal vs roker

Cystophora cristata compared with Raja clavata

Key Differences

• Hooded seal is Endangered while roker is Near Threatened.

Taxonomic Classification

Rank	Hooded seal	roker
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Pinnipedia (Seals & Sea Lions)	Rajiformes (Rajiformes)
Family	Phocidae (True Seals)	Rajidae
Genus	Cystophora	Raja
Species	Cystophora cristata	Raja clavata

Evolutionary Relationship

Hooded seal and roker share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hooded seal

EN — Endangered

roker

NT — Near Threatened

Physical Characteristics

Attribute	Hooded seal	roker
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hooded seal

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

roker

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal