Eurasian beaver vs Little Pocket Mouse

Castor fiber compared with Perognathus longimembris

Key Differences

• Eurasian beaver is Vulnerable while Little Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Little 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)	Perognathus
Species	Castor fiber	Perognathus longimembris

Evolutionary Relationship

Eurasian beaver and Little Pocket Mouse share a common ancestor at the Order level: Rodentia. (Rodents)

Conservation Status

Eurasian beaver

VU — Vulnerable

Little Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Little 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.

Little Pocket 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.