Eurasian beaver vs Ray

Castor fiber compared with Bathyraja schroederi

Key Differences

• Eurasian beaver is Vulnerable while Ray is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Ray
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Elasmobranchii
Order	Rodentia (ネズミ目)	Rajiformes (ガンギエイ目)
Family	Castoridae (Beavers)	Arhynchobatidae
Genus	Castor (Beavers)	Bathyraja
Species	Castor fiber	Bathyraja schroederi

Evolutionary Relationship

Eurasian beaver and Ray share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Eurasian beaver

VU — Vulnerable

Ray

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Ray
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.

Ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Chile.

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。