Cow-nosed ray vs Eurasian beaver

Rhinoptera bonasus compared with Castor fiber

Taxonomic Classification

Rank	Cow-nosed ray	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Mammalia (Mammals)
Order	Myliobatiformes (Myliobatiformes)	Rodentia (Rodents)
Family	Myliobatidae	Castoridae (Beavers)
Genus	Rhinoptera	Castor (Beavers)
Species	Rhinoptera bonasus	Castor fiber

Evolutionary Relationship

Cow-nosed ray and Eurasian beaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cow-nosed ray

VU — Vulnerable

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Cow-nosed ray	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cow-nosed ray

Habitat

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

Range

Found in Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.

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.