Eurasian beaver vs Variable Darner

Castor fiber compared with Aeshna interrupta

Key Differences

• Eurasian beaver is Vulnerable while Variable Darner is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Variable Darner
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum	Chordata (脊索動物)	Arthropoda (節足動物)
Class	Mammalia (哺乳類)	Insecta (昆虫)
Order	Rodentia (ネズミ目)	Odonata (蜻蛉目)
Family	Castoridae (Beavers)	Aeshnidae
Genus	Castor (Beavers)	Aeshna
Species	Castor fiber	Aeshna interrupta

Evolutionary Relationship

Eurasian beaver and Variable Darner share a common ancestor at the Kingdom level: Animalia. (動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Variable Darner

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Variable Darner
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.

Variable Darner

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in United States.

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。