Eurasian beaver vs Lesser Mouse-eared Myotis

Castor fiber compared with Myotis blythii

Key Differences

• Eurasian beaver is Vulnerable while Lesser Mouse-eared Myotis is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Lesser Mouse-eared Myotis
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Chiroptera (Bats)
Family	Castoridae (Beavers)	Vespertilionidae
Genus	Castor (Beavers)	Myotis
Species	Castor fiber	Myotis blythii

Evolutionary Relationship

Eurasian beaver and Lesser Mouse-eared Myotis share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Lesser Mouse-eared Myotis

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Lesser Mouse-eared Myotis
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.

Lesser Mouse-eared Myotis

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ukraine.

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.