Eurasian beaver vs Silk-Button Spangle Gall

Castor fiber compared with Neuroterus numismalis

Key Differences

• Eurasian beaver is Vulnerable while Silk-Button Spangle Gall is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	Silk-Button Spangle Gall
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Chordata (حبليات)	Arthropoda (مفصليات الأرجل)
Class	Mammalia (ثدييات)	Insecta (حشرات)
Order	Rodentia (قوارض)	Hymenoptera (غشائيات الأجنحة)
Family	Castoridae (Beavers)	Cynipidae
Genus	Castor (Beavers)	Neuroterus
Species	Castor fiber	Neuroterus numismalis

Evolutionary Relationship

Eurasian beaver and Silk-Button Spangle Gall share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Eurasian beaver

VU — Vulnerable

Silk-Button Spangle Gall

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	Silk-Button Spangle Gall
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.

Silk-Button Spangle Gall

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, 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