Eurasian beaver vs field slug

Castor fiber compared with Deroceras agreste

Key Differences

• Eurasian beaver is Vulnerable while field slug is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	field slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Mammalia (Mammals)	Gastropoda (Gastropoda)
Order	Rodentia (Rodents)	Stylommatophora (Stylommatophora)
Family	Castoridae (Beavers)	Agriolimacidae
Genus	Castor (Beavers)	Deroceras
Species	Castor fiber	Deroceras agreste

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

field slug

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	field slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

field slug

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Argentina, Chile, Paraguay).

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:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden