Eurasian beaver vs Round-spotted Major

Castor fiber compared with Oxycera dives

Key Differences

• Eurasian beaver is Vulnerable while Round-spotted Major is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	Round-spotted Major
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Diptera (Diptera)
Family	Castoridae (Beavers)	Stratiomyidae
Genus	Castor (Beavers)	Oxycera
Species	Castor fiber	Oxycera dives

Evolutionary Relationship

Eurasian beaver and Round-spotted Major share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Round-spotted Major

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	Round-spotted Major
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.

Round-spotted Major

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across 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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden