Eurasian beaver vs Pygmy Brittlestem

Castor fiber compared with Psathyrella pygmaea

Key Differences

• Eurasian beaver is Vulnerable while Pygmy Brittlestem is Least Concern.

Taxonomic Classification

Rank	Eurasian beaver	Pygmy Brittlestem
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Chordata (สัตว์มีแกนสันหลัง)	Basidiomycota (Club Fungi)
Class	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)	Agaricomycetes (Mushrooms)
Order	Rodentia (อันดับสัตว์ฟันแทะ)	Agaricales (Gilled Mushrooms)
Family	Castoridae (Beavers)	Psathyrellaceae
Genus	Castor (Beavers)	Psathyrella
Species	Castor fiber	Psathyrella pygmaea

Conservation Status

Eurasian beaver

VU — Vulnerable

Pygmy Brittlestem

LC — Least Concern

Physical Characteristics

Attribute	Eurasian beaver	Pygmy Brittlestem
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.

Pygmy Brittlestem

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Brazil, Denmark, Norway, and Sweden.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden