Brown Cup vs Eurasian beaver

Rutstroemia firma compared with Castor fiber

Key Differences

• Brown Cup is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Brown Cup	Eurasian beaver
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Ascomycota (子囊菌门)	Chordata (脊索动物门)
Class	Leotiomycetes (锤舌菌纲)	Mammalia (哺乳動物)
Order	Helotiales (柔膜菌目)	Rodentia (啮齿目)
Family	Rutstroemiaceae	Castoridae (Beavers)
Genus	Rutstroemia	Castor (Beavers)
Species	Rutstroemia firma	Castor fiber

Conservation Status

Brown Cup

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Brown Cup	Eurasian beaver
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Cup

Habitat

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

Range

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

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.

Brown Cup

The Brown Cup (Rutstroemia firma) is a species in the genus Rutstroemia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and South America, inhabiting ecosystems characteristic of the region.

Eurasian beaver

欧亚河狸（Castor fiber）在IUCN红色名录中被列为易危（VU）。面临野外高度濒危风险，种群数量下降，栖息地压力日益增大。

Shared Countries

Both species can be found in 4 countries:

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