Big Brown Bat vs Eurasian beaver

Eptesicus fuscus compared with Castor fiber

Key Differences

• Big Brown Bat is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Big Brown Bat	Eurasian beaver
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Mammalia (哺乳類)	Mammalia (哺乳類)
Order	Chiroptera (翼手目)	Rodentia (ネズミ目)
Family	Vespertilionidae	Castoridae (Beavers)
Genus	Eptesicus	Castor (Beavers)
Species	Eptesicus fuscus	Castor fiber

Evolutionary Relationship

Big Brown Bat and Eurasian beaver share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Big Brown Bat

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Big Brown Bat	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Colombia, Ecuador, United States, 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.

Big Brown Bat

The Big Brown Bat (Eptesicus fuscus) is a species in the genus Eptesicus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Eurasian beaver

ユーラシアビーバー（Castor fiber）はIUCNレッドリストで絶滅危惧II類（VU）に分類されています。個体群の減少と生息地への圧力の増大により、野生での絶滅危険度が高い状況に直面しています。

Shared Countries

Both species can be found in 1 countries:

🇧🇪 Belgium