California sea lion vs Eurasian beaver

Zalophus californianus compared with Castor fiber

Key Differences

• California sea lion is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	California sea lion	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Carnivora (Carnivorans)	Rodentia (Rodents)
Family	Otariidae	Castoridae (Beavers)
Genus	Zalophus	Castor (Beavers)
Species	Zalophus californianus	Castor fiber

Evolutionary Relationship

California sea lion and Eurasian beaver share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

California sea lion

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	California sea lion	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

California sea lion

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.

California sea lion

The California sea lion (Zalophus californianus) is a species in the genus Zalophus. It is currently classified as Least Concern on the IUCN Red List. 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.