Eurasian beaver vs Ray

Castor fiber compared with Sympterygia bonapartii

Key Differences

• Eurasian beaver is Vulnerable while Ray is Near Threatened.

Taxonomic Classification

Rank	Eurasian beaver	Ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Rodentia (Rodents)	Rajiformes (Rajiformes)
Family	Castoridae (Beavers)	Arhynchobatidae
Genus	Castor (Beavers)	Sympterygia
Species	Castor fiber	Sympterygia bonapartii

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Ray

NT — Near Threatened

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. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.