Brazilian Guinea pig vs Eurasian beaver

Cavia aperea compared with Castor fiber

Key Differences

• Brazilian Guinea pig is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Brazilian Guinea pig	Eurasian beaver
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	Caviidae	Castoridae (Beavers)
Genus	Cavia	Castor (Beavers)
Species	Cavia aperea	Castor fiber

Evolutionary Relationship

Brazilian Guinea pig and Eurasian beaver share a common ancestor at the Order level: Rodentia. (啮齿目)

Conservation Status

Brazilian Guinea pig

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Brazilian Guinea pig	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brazilian Guinea pig

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

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.

Brazilian Guinea pig

The Brazilian Guinea pig (Cavia aperea) is a species in the genus Cavia. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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。