Eurasian beaver vs Gray Mouse Opossum

Castor fiber compared with Tlacuatzin canescens

Key Differences

• Eurasian beaver is Vulnerable while Gray Mouse Opossum is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Gray Mouse Opossum
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	Rodentia (ネズミ目)	Didelphimorphia (Didelphimorphia)
Family	Castoridae (Beavers)	Didelphidae
Genus	Castor (Beavers)	Tlacuatzin
Species	Castor fiber	Tlacuatzin canescens

Evolutionary Relationship

Eurasian beaver and Gray Mouse Opossum share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Eurasian beaver

VU — Vulnerable

Gray Mouse Opossum

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Gray Mouse Opossum
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.

Gray Mouse Opossum

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。