Eurasian beaver vs Long-tailed Weasel

Castor fiber compared with Mustela frenata

Key Differences

• Eurasian beaver is Vulnerable while Long-tailed Weasel is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Long-tailed Weasel
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Mammalia (ثدييات)	Mammalia (ثدييات)
Order	Rodentia (قوارض)	Carnivora (لواحم)
Family	Castoridae (Beavers)	Mustelidae (Weasels & Otters)
Genus	Castor (Beavers)	Mustela
Species	Castor fiber	Mustela frenata

Evolutionary Relationship

Eurasian beaver and Long-tailed Weasel share a common ancestor at the Class level: Mammalia. (ثدييات)

Conservation Status

Eurasian beaver

VU — Vulnerable

Long-tailed Weasel

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Long-tailed Weasel
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.

Long-tailed Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, United States, and Venezuela.

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.