American black bear vs Eurasian beaver

Ursus americanus compared with Castor fiber

Key Differences

• American black bear is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	American black bear	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	Ursidae (Bears)	Castoridae (Beavers)
Genus	Ursus (Bears)	Castor (Beavers)
Species	Ursus americanus	Castor fiber

Evolutionary Relationship

American black bear and Eurasian beaver share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

American black bear

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	American black bear	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American black bear

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in United States.

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.

American black bear

The American black bear (Ursus americanus) is a species in the genus Ursus. 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.