Eurasian beaver vs Mountain Stream Siredon

Castor fiber compared with Ambystoma altamirani

Key Differences

• Eurasian beaver is Vulnerable while Mountain Stream Siredon is Endangered.

Taxonomic Classification

Rank	Eurasian beaver	Mountain Stream Siredon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Rodentia (Rodents)	Caudata (Caudata)
Family	Castoridae (Beavers)	Ambystomatidae
Genus	Castor (Beavers)	Ambystoma
Species	Castor fiber	Ambystoma altamirani

Evolutionary Relationship

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

Conservation Status

Eurasian beaver

VU — Vulnerable

Mountain Stream Siredon

EN — Endangered

Physical Characteristics

Attribute	Eurasian beaver	Mountain Stream Siredon
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.

Mountain Stream Siredon

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Endangered 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.