Eurasian beaver vs Guianan White-eared Opossum

Castor fiber compared with Didelphis imperfecta

Key Differences

• Eurasian beaver is Vulnerable while Guianan White-eared Opossum is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Guianan White-eared Opossum
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Rodentia (啮齿目)	Didelphimorphia (负鼠目)
Family	Castoridae (Beavers)	Didelphidae
Genus	Castor (Beavers)	Didelphis
Species	Castor fiber	Didelphis imperfecta

Evolutionary Relationship

Eurasian beaver and Guianan White-eared Opossum share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Guianan White-eared Opossum

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Guianan White-eared 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.

Guianan White-eared Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Eurasian beaver

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。