Eurasian beaver vs Narrow Groundling

Castor fiber compared with Caryocolum alsinella

Key Differences

• Eurasian beaver is Vulnerable while Narrow Groundling is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Narrow Groundling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Castoridae (Beavers)	Gelechiidae
Genus	Castor (Beavers)	Caryocolum
Species	Castor fiber	Caryocolum alsinella

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Narrow Groundling

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Narrow Groundling
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.

Narrow Groundling

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden