Big Naked-backed Bat vs Eurasian beaver

Pteronotus gymnonotus compared with Castor fiber

Key Differences

• Big Naked-backed Bat is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Big Naked-backed Bat	Eurasian beaver
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Mammalia (哺乳動物)	Mammalia (哺乳動物)
Order	Chiroptera (翼手目)	Rodentia (啮齿目)
Family	Mormoopidae	Castoridae (Beavers)
Genus	Pteronotus	Castor (Beavers)
Species	Pteronotus gymnonotus	Castor fiber

Evolutionary Relationship

Big Naked-backed Bat and Eurasian beaver share a common ancestor at the Class level: Mammalia. (哺乳動物)

Conservation Status

Big Naked-backed Bat

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Big Naked-backed Bat	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Naked-backed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia 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 Naked-backed Bat

The Big Naked-backed Bat (Pteronotus gymnonotus) is a species in the genus Pteronotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Eurasian beaver

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。