Eurasian beaver vs long-tailed pocket mouse

Castor fiber compared with Chaetodipus formosus

Key Differences

• Eurasian beaver is Vulnerable while long-tailed pocket mouse is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	long-tailed pocket mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Rodentia (Rodents)	Rodentia (Rodents)
Family	Castoridae (Beavers)	Heteromyidae
Genus	Castor (Beavers)	Chaetodipus
Species	Castor fiber	Chaetodipus formosus

Evolutionary Relationship

Eurasian beaver and long-tailed pocket mouse share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Eurasian beaver

VU — Vulnerable

long-tailed pocket mouse

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	long-tailed pocket 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.

long-tailed pocket mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

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.