Eurasian beaver vs Swamp Dwarf Crayfish

Castor fiber compared with Cambarellus puer

Key Differences

• Eurasian beaver is Vulnerable while Swamp Dwarf Crayfish is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Swamp Dwarf Crayfish
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Mammalia (哺乳類)	Malacostraca (軟甲綱)
Order	Rodentia (ネズミ目)	Decapoda (十脚目)
Family	Castoridae (Beavers)	Cambaridae
Genus	Castor (Beavers)	Cambarellus
Species	Castor fiber	Cambarellus puer

Evolutionary Relationship

Eurasian beaver and Swamp Dwarf Crayfish share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Swamp Dwarf Crayfish

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Swamp Dwarf Crayfish
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.

Swamp Dwarf Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

Eurasian beaver

ユーラシアビーバー（Castor fiber）はIUCNレッドリストで絶滅危惧II類（VU）に分類されています。個体群の減少と生息地への圧力の増大により、野生での絶滅危険度が高い状況に直面しています。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway