Eurasian beaver vs Lesser Golden-bellied Rice Rat

Castor fiber compared with Nephelomys nimbosus

Taxonomic Classification

Rank	Eurasian beaver	Lesser Golden-bellied Rice Rat
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order same	Rodentia (啮齿目)	Rodentia (啮齿目)
Family	Castoridae (Beavers)	Cricetidae
Genus	Castor (Beavers)	Nephelomys
Species	Castor fiber	Nephelomys nimbosus

Evolutionary Relationship

Eurasian beaver and Lesser Golden-bellied Rice Rat share a common ancestor at the Order level: Rodentia. (啮齿目)

Conservation Status

Eurasian beaver

VU — Vulnerable

Lesser Golden-bellied Rice Rat

VU — Vulnerable

Physical Characteristics

Attribute	Eurasian beaver	Lesser Golden-bellied Rice Rat
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 Golden-bellied Rice Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Eurasian beaver

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。