Dusky arion vs Eurasian beaver

Arion subfuscus compared with Castor fiber

Key Differences

• Dusky arion is Data Deficient while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Dusky arion	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Mammalia (Mammals)
Order	Stylommatophora (Stylommatophora)	Rodentia (Rodents)
Family	Arionidae	Castoridae (Beavers)
Genus	Arion	Castor (Beavers)
Species	Arion subfuscus	Castor fiber

Evolutionary Relationship

Dusky arion and Eurasian beaver share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Dusky arion

DD — Data Deficient

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Dusky arion	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky arion

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (5 countries) and North America (United States).

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden