Eurasian beaver vs Rock Foam

Castor fiber compared with Stereocaulon saxatile

Key Differences

• Eurasian beaver is Vulnerable while Rock Foam is Near Threatened.

Taxonomic Classification

Rank	Eurasian beaver	Rock Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Mammalia (Mammals)	Lecanoromycetes (Lecanoromycetes)
Order	Rodentia (Rodents)	Lecanorales (Lecanorales)
Family	Castoridae (Beavers)	Stereocaulaceae
Genus	Castor (Beavers)	Stereocaulon
Species	Castor fiber	Stereocaulon saxatile

Conservation Status

Eurasian beaver

VU — Vulnerable

Rock Foam

NT — Near Threatened

Physical Characteristics

Attribute	Eurasian beaver	Rock Foam
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.

Rock Foam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. 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.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden