Birdlike Noctule vs Eurasian beaver

Nyctalus aviator compared with Castor fiber

Key Differences

• Birdlike Noctule is Near Threatened while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Birdlike Noctule	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	Nyctalus	Castor (Beavers)
Species	Nyctalus aviator	Castor fiber

Evolutionary Relationship

Birdlike Noctule and Eurasian beaver share a common ancestor at the Class level: Mammalia. (哺乳類)

Conservation Status

Birdlike Noctule

NT — Near Threatened

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Birdlike Noctule	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Birdlike Noctule

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.

Birdlike Noctule

The Birdlike Noctule (Nyctalus aviator) is a species in the genus Nyctalus. It is currently classified as Near Threatened 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。