Eurasian beaver vs Guinea pig

Castor fiber compared with Cavia porcellus

Key Differences

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

Taxonomic Classification

Rank	Eurasian beaver	Guinea pig
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)	Caviidae
Genus	Castor (Beavers)	Cavia
Species	Castor fiber	Cavia porcellus

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Guinea pig

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Guinea pig
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.

Guinea pig

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Europe (6 countries), North America (Cuba), Oceania and the Pacific (Australia), and South America (Colombia, Ecuador).

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway