Eurasian beaver vs flat-backed millipede

Castor fiber compared with Polydesmus complanatus

Key Differences

• Eurasian beaver is Vulnerable while flat-backed millipede is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	flat-backed millipede
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Diplopoda (Diplopoda)
Order	Rodentia (Rodents)	Polydesmida (Polydesmida)
Family	Castoridae (Beavers)	Polydesmidae
Genus	Castor (Beavers)	Polydesmus
Species	Castor fiber	Polydesmus complanatus

Evolutionary Relationship

Eurasian beaver and flat-backed millipede share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

flat-backed millipede

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	flat-backed millipede
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.

flat-backed millipede

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden