Eurasian beaver vs Jolly’s Mouse Lemur

Castor fiber compared with Microcebus jollyae

Key Differences

• Eurasian beaver is Vulnerable while Jolly’s Mouse Lemur is Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Jolly’s Mouse Lemur
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Mammalia (млекопитающие)	Mammalia (млекопитающие)
Order	Rodentia (грызуны)	Primates (приматы)
Family	Castoridae (Beavers)	Cheirogaleidae
Genus	Castor (Beavers)	Microcebus
Species	Castor fiber	Microcebus jollyae

Evolutionary Relationship

Eurasian beaver and Jolly’s Mouse Lemur share a common ancestor at the Class level: Mammalia. (млекопитающие)

Conservation Status

Eurasian beaver

VU — Vulnerable

Jolly’s Mouse Lemur

EN — Endangered

Physical Characteristics

Attribute	Eurasian beaver	Jolly’s Mouse Lemur
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.

Jolly’s Mouse Lemur

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.