Eurasian beaver vs Mudworm

Castor fiber compared with Aporrectodea limicola

Key Differences

• Eurasian beaver is Vulnerable while Mudworm is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	Mudworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Annelida (Segmented Worms)
Class	Mammalia (Mammals)	Clitellata (Clitellata)
Order	Rodentia (Rodents)	Crassiclitellata (Crassiclitellata)
Family	Castoridae (Beavers)	Lumbricidae
Genus	Castor (Beavers)	Aporrectodea
Species	Castor fiber	Aporrectodea limicola

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Mudworm

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	Mudworm
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.

Mudworm

Habitat

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

Range

Distributed across Belgium, Norway, Sweden, and United States.

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