Eurasian beaver vs Northern Rock Deermouse

Castor fiber compared with Peromyscus nasutus

Key Differences

• Eurasian beaver is Vulnerable while Northern Rock Deermouse is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Northern Rock Deermouse
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order same	Rodentia (ネズミ目)	Rodentia (ネズミ目)
Family	Castoridae (Beavers)	Cricetidae
Genus	Castor (Beavers)	Peromyscus
Species	Castor fiber	Peromyscus nasutus

Evolutionary Relationship

Eurasian beaver and Northern Rock Deermouse share a common ancestor at the Order level: Rodentia. (ネズミ目)

Conservation Status

Eurasian beaver

VU — Vulnerable

Northern Rock Deermouse

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Northern Rock Deermouse
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.

Northern Rock Deermouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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。