Eurasian beaver vs Greater Pencil-tailed Tree Mouse

Castor fiber compared with Chiropodomys major

Key Differences

• Eurasian beaver is Vulnerable while Greater Pencil-tailed Tree Mouse is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Greater Pencil-tailed Tree Mouse
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order same	Rodentia (قوارض)	Rodentia (قوارض)
Family	Castoridae (Beavers)	Muridae (Mice & Rats)
Genus	Castor (Beavers)	Chiropodomys
Species	Castor fiber	Chiropodomys major

Evolutionary Relationship

Eurasian beaver and Greater Pencil-tailed Tree Mouse share a common ancestor at the Order level: Rodentia. (قوارض)

Conservation Status

Eurasian beaver

VU — Vulnerable

Greater Pencil-tailed Tree Mouse

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Greater Pencil-tailed Tree Mouse
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.

Greater Pencil-tailed Tree Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.