Eurasian beaver vs Linnaeus's mouse opossum

Castor fiber compared with Marmosa murina

Key Differences

• Eurasian beaver is Vulnerable while Linnaeus's mouse opossum is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Linnaeus's mouse opossum
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order	Rodentia (قوارض)	Didelphimorphia (Didelphimorphia)
Family	Castoridae (Beavers)	Didelphidae
Genus	Castor (Beavers)	Marmosa
Species	Castor fiber	Marmosa murina

Evolutionary Relationship

Eurasian beaver and Linnaeus's mouse opossum share a common ancestor at the Class level: Mammalia. (ثدييات)

Conservation Status

Eurasian beaver

VU — Vulnerable

Linnaeus's mouse opossum

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Linnaeus's 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.

Linnaeus's mouse opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

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.